From f906c666424a2fa38f8e21704c3c2c34b1c09193 Mon Sep 17 00:00:00 2001
From: Brandon Martin-Anderson <badhill@gmail.com>
Date: Tue, 14 Jul 2026 21:34:39 +0000
Subject: [PATCH] Copyright headers: introduce NOTICE + gradual, consent-gated
 migration tooling

Reform the project's copyright headers toward a single canonical Apache-2.0
header per file (the ASF / Kubernetes / Linux-Foundation convention: "Copyright
The OneBusAway Authors.", no per-file names or years), with historical
attribution consolidated verbatim in a top-level NOTICE file.

This is deliberately a DRAFT to open project discussion, not a finished cutover.

What's here:
- NOTICE: consolidated holder list plus a verbatim appendix of all 57 distinct
  historical copyright notices, so no attribution is lost. Three AOSP-derived
  files are called out as third-party notices that stay in-file.
- tools/copyright-reform/apply-headers.py: idempotent migrator with a CI --check
  mode. Migration is gated per copyright holder via an EXCLUDED_HOLDERS list; a
  file is only restamped once every holder it names has authorized relocation
  (Apache-2.0 s4 / ASF source-header policy permit a holder to move their own
  notice to NOTICE). Three AOSP files are path-exempt.
- tools/copyright-reform/CONSENT-REQUEST.md + consents/: the holder outreach
  template and the durable sign-off audit trail.

This commit runs the migration once with every holder still excluded, which
touches only the 21 currently header-less source files (they name no holder, so
no consent is implicated) -- purely additive. The ~520 OTSF-only files and all
externally-held files remain on their original headers, pending the discussion
and the respective authorizations.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---
 NOTICE                                        | 215 +++++++++++++++
 .../analytics/test/UmamiAnalyticsTest.java    |  16 ++
 .../android/analytics/PlausibleAnalytics.kt   |  16 ++
 .../android/analytics/UmamiAnalytics.java     |  16 ++
 .../analytics/UmamiAnalyticsReporter.kt       |  16 ++
 .../onebusaway/android/backup/BackupUtil.kt   |  16 ++
 .../android/database/AppDatabase.kt           |  16 ++
 .../onebusaway/android/database/Migrations.kt |  16 ++
 .../database/survey/SurveyRepository.kt       |  16 ++
 .../android/database/survey/dao/StudiesDao.kt |  16 ++
 .../android/database/survey/dao/SurveysDao.kt |  16 ++
 .../android/database/survey/entity/Study.kt   |  16 ++
 .../android/database/survey/entity/Survey.kt  |  16 ++
 .../database/widealerts/AlertsRepository.kt   |  16 ++
 .../database/widealerts/dao/AlertDao.kt       |  16 ++
 .../database/widealerts/entity/AlertEntity.kt |  16 ++
 .../android/donations/DonationsManager.java   |  16 ++
 .../tripservice/MyFirebaseMessagingService.kt |  16 ++
 .../android/ui/survey/utils/SurveyUtils.kt    |  16 ++
 .../android/widealerts/GtfsAlertCallBack.java |  16 ++
 .../android/widealerts/GtfsAlerts.java        |  16 ++
 .../android/widealerts/GtfsAlertsHelper.java  |  16 ++
 tools/copyright-reform/CONSENT-REQUEST.md     | 116 ++++++++
 .../__pycache__/apply-headers.cpython-310.pyc | Bin 0 -> 9037 bytes
 tools/copyright-reform/apply-headers.py       | 257 ++++++++++++++++++
 tools/copyright-reform/consents/README.md     |  16 ++
 26 files changed, 940 insertions(+)
 create mode 100644 NOTICE
 create mode 100644 tools/copyright-reform/CONSENT-REQUEST.md
 create mode 100644 tools/copyright-reform/__pycache__/apply-headers.cpython-310.pyc
 create mode 100755 tools/copyright-reform/apply-headers.py
 create mode 100644 tools/copyright-reform/consents/README.md

diff --git a/NOTICE b/NOTICE
new file mode 100644
index 000000000..5c0c8a653
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,215 @@
+OneBusAway for Android
+Copyright The OneBusAway Authors.
+
+This product is developed and maintained by the OneBusAway project, stewarded by
+the Open Transit Software Foundation (OTSF). It is licensed under the Apache
+License, Version 2.0. You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+--------------------------------------------------------------------------------
+About this file
+--------------------------------------------------------------------------------
+
+Every source file in this repository carries a single, uniform Apache-2.0 license
+header that names no individual copyright holder or year (see
+`tools/copyright-reform/`). This follows the convention documented by the Linux
+Foundation and practiced by the Apache Software Foundation and Kubernetes: one
+canonical header per file, with attribution consolidated here in NOTICE.
+
+The copyright notices below were previously carried in individual source-file
+headers. They have been relocated here, verbatim, with the authorization of their
+respective copyright holders (Apache-2.0 Section 4 and ASF source-header policy
+both permit a copyright owner to move their own notice to NOTICE). Relocation does
+not transfer or assign any copyright; each holder retains all rights in their
+contributions. Redistributors must carry this NOTICE forward under Section 4(d) of
+the License.
+
+>>> IN PROGRESS: the header migration is applied GRADUALLY, per copyright holder.
+>>> A file's notice is relocated here only once every holder it names has authorized
+>>> relocation; until then the file keeps its original in-file header. Holders still
+>>> awaiting consent are listed in EXCLUDED_HOLDERS in
+>>> tools/copyright-reform/apply-headers.py; authorizations are collected via
+>>> CONSENT-REQUEST.md and recorded under tools/copyright-reform/consents/. This
+>>> appendix therefore lists every notice that WILL be relocated; some are still
+>>> carried in-file until their holder signs off.
+
+--------------------------------------------------------------------------------
+Copyright holders
+--------------------------------------------------------------------------------
+
+Portions of this software are copyright of, and were contributed by, the following
+individuals and organizations (consolidated; see the verbatim appendix below for
+the exact notices as they appeared in the source):
+
+    Paul Watts (paulcwatts@gmail.com)
+    University of South Florida
+    Sean J. Barbeau (sjbarbeau@gmail.com)
+    Brian Ferris (bdferris@onebusaway.org)
+    Microsoft Corporation
+    Rodrigo Carvalho (carvalhorr@gmail.com)
+    Colin McDonough
+    Cambridge Systematics, Inc.
+    Benjamin Du (bendu@me.com)
+    Open Transit Software Foundation
+    ...and individual contributors.
+
+--------------------------------------------------------------------------------
+Third-party code (notices retained in-file, NOT relocated)
+--------------------------------------------------------------------------------
+
+This distribution includes code derived from the Android Open Source Project,
+licensed under the Apache License, Version 2.0. Under that license and ASF policy,
+third-party copyright notices are preserved in the source files themselves and are
+deliberately excluded from the header migration:
+
+    onebusaway-android/src/main/java/org/onebusaway/android/util/MathUtils.java
+        Copyright (C) 2013 The Android Open Source Project
+
+    onebusaway-android/src/main/java/org/onebusaway/android/util/PermissionUtils.java
+        Copyright (C) 2018 The Android Open Source Project,
+                           Sean J. Barbeau (sjbarbeau@gmail.com)
+
+    onebusaway-android/src/androidTest/java/org/onebusaway/android/api/test/LoaderTestCase.java
+        Copyright (C) 2010 The Android Open Source Project
+
+Note: PermissionUtils.java mingles a third-party (AOSP) notice with a contributor
+(Barbeau) notice on one line. Because we must not edit the third-party portion, the
+entire header of that file is retained in-file unchanged rather than partially
+relocated.
+
+================================================================================
+APPENDIX: relocated notices, verbatim as they appeared in source headers
+================================================================================
+
+The following are the exact, de-duplicated copyright notices lifted from the
+source-file headers prior to the migration. They are reproduced here without
+alteration (including original spelling and spacing) to preserve attribution
+faithfully. Ranges of years and the presence/absence of "(C)" are as originally
+written.
+
+    Copyright (C) 2005-2018 University of South Florida
+
+    Copyright (C) 2005-2019 University of South Florida
+
+    Copyright (C) 2010 Paul Watts (paulcwatts@gmail.com)
+
+    Copyright (C) 2010 Paul Watts (paulcwatts@gmail.com),
+    Copyright (C) 2026 Open Transit Software Foundation
+
+    Copyright (C) 2010-2015 Paul Watts (paulcwatts@gmail.com), University of South Florida
+
+    Copyright (C) 2010-2016 Paul Watts (paulcwatts@gmail.com)
+    University of South Florida (sjbarbeau@gmail.com)
+
+    Copyright (C) 2010-2017 Brian Ferris (bdferris@onebusaway.org),
+    University of South Florida (sjbarbeau@gmail.com),
+    Microsoft Corporation
+
+    Copyright (C) 2010-2017 Brian Ferris (bdferris@onebusaway.org),
+    University of South Florida (sjbarbeau@gmail.com),
+    Microsoft Corporation,
+    Open Transit Software Foundation
+
+    Copyright (C) 2010-2017 Paul Watts (paulcwatts@gmail.com),
+    University of South  Florida (sjbarbeau@gmail.com), Microsoft Corporation
+
+    Copyright (C) 2011 individual contributors
+
+    Copyright (C) 2011-2026 Paul Watts (paulcwatts@gmail.com), University of South Florida,
+    Open Transit Software Foundation
+
+    Copyright (C) 2012 Paul Watts (paulcwatts@gmail.com)
+
+    Copyright (C) 2012 individual contributors.
+
+    Copyright (C) 2012-2017 Paul Watts (paulcwatts@gmail.com),
+    University of South Florida (sjbarbeau@gmail.com),
+    Microsoft Corporation
+
+    Copyright (C) 2012-2017 Paul Watts (paulcwatts@gmail.com),
+    University of South Florida (sjbarbeau@gmail.com), Microsoft Corporation
+
+    Copyright (C) 2012-2017 Paul Watts (paulcwatts@gmail.com),
+    University of South Florida, Microsoft Corporation.
+
+    Copyright (C) 2012-2026 Paul Watts (paulcwatts@gmail.com), Open Transit Software Foundation
+
+    Copyright (C) 2012-2026 Paul Watts (paulcwatts@gmail.com), University of South Florida,
+    Benjamin Du (bendu@me.com), Open Transit Software Foundation
+
+    Copyright (C) 2012-2026 Paul Watts (paulcwatts@gmail.com), University of South Florida,
+    Open Transit Software Foundation
+
+    Copyright (C) 2013 Paul Watts (paulcwatts@gmail.com)
+
+    Copyright (C) 2014 Sean J. Barbeau (sjbarbeau@gmail.com), University of South Florida
+
+    Copyright (C) 2014 University of South Florida (sjbarbeau@gmail.com)
+
+    Copyright (C) 2014 University of South Florida (sjbarbeau@gmail.com),
+    Copyright (C) 2026 Open Transit Software Foundation
+
+    Copyright (C) 2014 University of South Florida,
+    Copyright (C) 2026 Open Transit Software Foundation
+
+    Copyright (C) 2014-2015 University of South Florida (sjbarbeau@gmail.com),
+    Copyright (C) 2026 Open Transit Software Foundation
+
+    Copyright (C) 2014-2017 University of South Florida (sjbarbeau@gmail.com)
+
+    Copyright (C) 2014-2017 University of South Florida (sjbarbeau@gmail.com),
+    Microsoft Corporation
+
+    Copyright (C) 2014-2019 University of South Florida
+
+    Copyright (C) 2014-2024 University of South Florida (sjbarbeau@gmail.com)
+
+    Copyright (C) 2015 Sean J. Barbeau (sjbarbeau@gmail.com)
+
+    Copyright (C) 2015 University of South Florida (sjbarbeau@gmail.com),
+    Copyright (C) 2026 Open Transit Software Foundation
+
+    Copyright (C) 2015 University of South Florida, Sean J. Barbeau (sjbarbeau@gmail.com)
+
+    Copyright (C) 2015-2017 Paul Watts,
+    University of South Florida (sjbarbeau@gmail.com)
+
+    Copyright (C) 2015-2017 University of South Florida (sjbarbeau@gmail.com)
+
+    Copyright (C) 2015-2026 University of South Florida (sjbarbeau@gmail.com),
+    Open Transit Software Foundation
+
+    Copyright (C) 2016 Cambridge Systematics, Inc.
+
+    Copyright (C) 2016 University of South Florida (sjbarbeau@gmail.com)
+
+    Copyright (C) 2016 University of South Florida,
+    Copyright (C) 2026 Open Transit Software Foundation
+
+    Copyright (C) 2017 Rodrigo Carvalho (carvalhorr@gmail.com)
+
+    Copyright (C) 2017 University of South Florida (sjbarbeau@gmail.com)
+
+    Copyright (C) 2018 Sean J. Barbeau (sjbarbeau@gmail.com)
+
+    Copyright (C) 2018 University of South Florida (sjbarbeau@gmail.com)
+
+    Copyright (C) 2019 University of South Florida
+
+    Copyright (C) 2020 Sean J. Barbeau (sjbarbeau@gmail.com)
+
+    Copyright (C) 2024 University of South Florida (sjbarbeau@gmail.com)
+
+    Copyright (C) 2024-2026 Open Transit Software Foundation
+
+    Copyright (C) 2026 OneBusAway
+
+    Copyright (C) 2026 Open Transit Software Foundation
+
+    Copyright 2012 University of South Florida
+
+    Copyright 2013-2026 Colin McDonough, University of South Florida, Sean J. Barbeau,
+    Open Transit Software Foundation
+
+    Copyright 2026 University of South Florida
diff --git a/onebusaway-android/src/androidTest/java/org/onebusaway/android/analytics/test/UmamiAnalyticsTest.java b/onebusaway-android/src/androidTest/java/org/onebusaway/android/analytics/test/UmamiAnalyticsTest.java
index b499a25e7..d6d9bf3d6 100644
--- a/onebusaway-android/src/androidTest/java/org/onebusaway/android/analytics/test/UmamiAnalyticsTest.java
+++ b/onebusaway-android/src/androidTest/java/org/onebusaway/android/analytics/test/UmamiAnalyticsTest.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.analytics.test;
 
 import static org.junit.Assert.assertEquals;
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/analytics/PlausibleAnalytics.kt b/onebusaway-android/src/main/java/org/onebusaway/android/analytics/PlausibleAnalytics.kt
index 01014852d..c78a85658 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/analytics/PlausibleAnalytics.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/analytics/PlausibleAnalytics.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.analytics
 
 import com.onebusaway.plausible.android.Plausible
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/analytics/UmamiAnalytics.java b/onebusaway-android/src/main/java/org/onebusaway/android/analytics/UmamiAnalytics.java
index 6ad696910..24dc8c922 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/analytics/UmamiAnalytics.java
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/analytics/UmamiAnalytics.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.analytics;
 
 import android.os.Build;
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/analytics/UmamiAnalyticsReporter.kt b/onebusaway-android/src/main/java/org/onebusaway/android/analytics/UmamiAnalyticsReporter.kt
index 5bd754059..5b7b21c4d 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/analytics/UmamiAnalyticsReporter.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/analytics/UmamiAnalyticsReporter.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.analytics
 
 /**
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/backup/BackupUtil.kt b/onebusaway-android/src/main/java/org/onebusaway/android/backup/BackupUtil.kt
index 1686d3e86..fb3f7551f 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/backup/BackupUtil.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/backup/BackupUtil.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.backup
 
 import android.content.Context
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/database/AppDatabase.kt b/onebusaway-android/src/main/java/org/onebusaway/android/database/AppDatabase.kt
index 9c6cf1f0c..0752880b4 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/database/AppDatabase.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/database/AppDatabase.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.database
 
 import androidx.room.Database
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/database/Migrations.kt b/onebusaway-android/src/main/java/org/onebusaway/android/database/Migrations.kt
index 44eedd064..91b02b4fb 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/database/Migrations.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/database/Migrations.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.database
 
 import androidx.room.migration.Migration
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/SurveyRepository.kt b/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/SurveyRepository.kt
index c42aacf4f..474944a9b 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/SurveyRepository.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/SurveyRepository.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.database.survey
 
 import javax.inject.Inject
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/dao/StudiesDao.kt b/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/dao/StudiesDao.kt
index 8cad61220..bb7373a61 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/dao/StudiesDao.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/dao/StudiesDao.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.database.survey.dao
 
 import androidx.room.*
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/dao/SurveysDao.kt b/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/dao/SurveysDao.kt
index 464b4cf1f..95a3e68cd 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/dao/SurveysDao.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/dao/SurveysDao.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.database.survey.dao
 
 import androidx.room.*
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/entity/Study.kt b/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/entity/Study.kt
index 83cc5dbf0..46af2a77c 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/entity/Study.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/entity/Study.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.database.survey.entity
 
 import androidx.room.Entity
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/entity/Survey.kt b/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/entity/Survey.kt
index 110da7727..ceb824bc2 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/entity/Survey.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/database/survey/entity/Survey.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.database.survey.entity
 
 import androidx.room.Entity
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/AlertsRepository.kt b/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/AlertsRepository.kt
index 20833075a..36550a5fa 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/AlertsRepository.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/AlertsRepository.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.database.widealerts
 
 import javax.inject.Inject
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/dao/AlertDao.kt b/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/dao/AlertDao.kt
index 9bfd045b4..50aee102f 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/dao/AlertDao.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/dao/AlertDao.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.database.widealerts.dao
 
 import androidx.room.Dao
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/entity/AlertEntity.kt b/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/entity/AlertEntity.kt
index d4cfec4ab..12ae0b16d 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/entity/AlertEntity.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/database/widealerts/entity/AlertEntity.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.database.widealerts.entity
 
 import androidx.room.Entity
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/donations/DonationsManager.java b/onebusaway-android/src/main/java/org/onebusaway/android/donations/DonationsManager.java
index 3c4b82929..f54a83ab2 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/donations/DonationsManager.java
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/donations/DonationsManager.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.donations;
 
 import org.onebusaway.android.R;
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/tripservice/MyFirebaseMessagingService.kt b/onebusaway-android/src/main/java/org/onebusaway/android/tripservice/MyFirebaseMessagingService.kt
index 17e7c4b4d..b6a2221b3 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/tripservice/MyFirebaseMessagingService.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/tripservice/MyFirebaseMessagingService.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.tripservice
 
 import android.app.Notification
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/ui/survey/utils/SurveyUtils.kt b/onebusaway-android/src/main/java/org/onebusaway/android/ui/survey/utils/SurveyUtils.kt
index 8fb277246..c24065630 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/ui/survey/utils/SurveyUtils.kt
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/ui/survey/utils/SurveyUtils.kt
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.ui.survey.utils
 
 import android.util.Log
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlertCallBack.java b/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlertCallBack.java
index 0fb36a4fb..fb80c4fb3 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlertCallBack.java
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlertCallBack.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.widealerts;
 
 /** Callback interface for GTFS alerts. */
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlerts.java b/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlerts.java
index 3030f98ed..72f43ada2 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlerts.java
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlerts.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.widealerts;
 
 import com.google.transit.realtime.GtfsRealtime;
diff --git a/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlertsHelper.java b/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlertsHelper.java
index 8935e9f8a..b0bd71bca 100644
--- a/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlertsHelper.java
+++ b/onebusaway-android/src/main/java/org/onebusaway/android/widealerts/GtfsAlertsHelper.java
@@ -1,3 +1,19 @@
+/*
+ * Copyright The OneBusAway Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package org.onebusaway.android.widealerts;
 
 import com.google.transit.realtime.GtfsRealtime;
diff --git a/tools/copyright-reform/CONSENT-REQUEST.md b/tools/copyright-reform/CONSENT-REQUEST.md
new file mode 100644
index 000000000..dfd28ba85
--- /dev/null
+++ b/tools/copyright-reform/CONSENT-REQUEST.md
@@ -0,0 +1,116 @@
+# Request to relocate your copyright notice to NOTICE
+
+*Template for contacting each historical copyright holder in the OneBusAway for
+Android codebase. Send one per holder (email or a tracked GitHub issue), filling in
+the bracketed fields. File each reply — a plain affirmative "I authorize this" is
+enough — under this directory (e.g. `consents/<holder>.md`) so the sign-off is
+auditable. Do not run the header migration for a holder's notices until their
+authorization is on file.*
+
+---
+
+**To:** [Holder name / representative]
+**Re:** Consolidating copyright headers in OneBusAway for Android
+
+Hi [name],
+
+Our records show you (or an organization you represent) are named in one or more
+copyright notices in the OneBusAway for Android source tree — specifically:
+
+> [paste the exact notice(s) that name this holder, verbatim from NOTICE]
+
+We're cleaning up the project's copyright headers. Over ~15 years the per-file
+headers have drifted into 40+ inconsistent variants (differing years, name spellings,
+and holder lists), which is a maintenance burden and is often inaccurate. We'd like to
+adopt the convention used by the Apache Software Foundation, Kubernetes, and other
+long-lived Apache-2.0 projects, and [recommended by the Linux Foundation][lf]:
+
+- **Every source file** carries one identical Apache-2.0 license header that names no
+  individual holder and no year:
+
+  > Copyright The OneBusAway Authors.
+
+- **All historical copyright notices** — including yours, exactly as written — move,
+  verbatim, into the repository's top-level `NOTICE` file, which is distributed with
+  the software and carried forward by anyone who redistributes it (Apache-2.0 §4(d)).
+
+**What we're asking of you:** your authorization to *relocate* your copyright
+notice(s) from the individual source-file headers to the `NOTICE` file.
+
+**What this does NOT do:** it does **not** transfer, assign, or waive any of your
+copyright. You retain all rights in your contributions exactly as before; only the
+*location* of the notice changes, and its text is preserved verbatim. This is the
+step Apache-2.0 §4 and the [ASF source-header policy][asf] contemplate for a
+copyright owner moving their own notice into NOTICE. (Code we did not receive from
+its owner — e.g. the Android Open Source Project files — is left untouched, notice
+in place, per that same policy.)
+
+If you're willing, please reply to this message with a clear affirmative, for example:
+
+> I am a copyright holder of the notice(s) quoted above (or am authorized to act for
+> the holder), and I authorize the OneBusAway project to relocate those notice(s)
+> verbatim from the source-file headers to the project's NOTICE file. I understand
+> this does not transfer or waive my copyright.
+
+If you'd prefer we keep your notice in the source-file header instead, just say so and
+we'll exclude your files from the change. If you believe the notice attributing you is
+inaccurate (wrong years, should/shouldn't include you), let us know that too.
+
+Thanks for your contributions to OneBusAway,
+[Your name], on behalf of the Open Transit Software Foundation
+
+[lf]: https://www.linuxfoundation.org/blog/blog/copyright-notices-in-open-source-software-projects
+[asf]: https://www.apache.org/legal/src-headers.html
+
+---
+
+## Holders to contact
+
+Derive the per-holder notice list from `NOTICE` (verbatim appendix). Known parties:
+
+| Holder | Contact | Notes |
+|---|---|---|
+| Paul Watts | paulcwatts@gmail.com | Original author; named in `LICENSE` |
+| University of South Florida | via Sean J. Barbeau | Institutional holder — USF may route through its tech-transfer / legal office |
+| Sean J. Barbeau | sjbarbeau@gmail.com | Individual and USF-affiliated notices |
+| Brian Ferris | bdferris@onebusaway.org | Original OneBusAway author |
+| Microsoft Corporation | *needs a contact* | Corporate holder — likely needs OSPO/legal sign-off |
+| Rodrigo Carvalho | carvalhorr@gmail.com | |
+| Colin McDonough | *needs a contact* | |
+| Cambridge Systematics, Inc. | *needs a contact* | Corporate holder — needs legal sign-off |
+| Benjamin Du | bendu@me.com | |
+| Open Transit Software Foundation | current steward | Self-authorizing; record for completeness |
+| "individual contributors" (generic) | n/a | Catch-all text; no specific party to contact |
+
+**Corporate holders (Microsoft, Cambridge Systematics) and an institutional one
+(USF) are the long-pole items** — they typically route through a legal/OSPO process
+rather than an individual reply. Start those first. If any holder cannot be reached
+or declines, keep that holder's notice in-file (leave their entry in
+`EXCLUDED_HOLDERS`) rather than relocating without authorization.
+
+## How this drives the migration (gradual rollout)
+
+The migration is not all-or-nothing. `tools/copyright-reform/apply-headers.py` holds
+an `EXCLUDED_HOLDERS` list; a file is migrated to the canonical header only once
+**none** of the holders it names are still excluded. The rollout:
+
+1. **Now:** commit the tooling with every holder excluded. A run migrates only the
+   files that name no holder at all (header-less files) — a safe no-op for attribution.
+2. **First lift:** remove the `Open Transit Software Foundation` entry (the steward is
+   self-authorizing). Re-run — the ~500 OTSF-only files migrate.
+3. **As each authorization arrives:** record it under `consents/<holder>.md`, delete
+   that holder's entry from `EXCLUDED_HOLDERS`, and re-run. Files blocked solely by
+   that holder migrate; multi-holder files wait for their last holder. Already-migrated
+   files are untouched (the rewrite is idempotent).
+
+Run `apply-headers.py --dry-run` at any time to see the current per-holder blocked
+counts, i.e. how many files each outstanding consent would unblock.
+
+> Note: USF and Barbeau notices are intertwined (USF headers carry sjbarbeau@gmail.com),
+> so lift the `University of South Florida` and `Sean J. Barbeau` entries together when
+> that authorization arrives.
+
+> **This is a human/legal sign-off gate, per the project's "no unsanctioned
+> heuristics / human sign-off" rule.** An agent should not decide that the ICLA alone
+> authorizes relocation and skip this step. Obtain and record consent, or retain the
+> notice in-file.
diff --git a/tools/copyright-reform/__pycache__/apply-headers.cpython-310.pyc b/tools/copyright-reform/__pycache__/apply-headers.cpython-310.pyc
new file mode 100644
index 0000000000000000000000000000000000000000..dc0077c0bad707166e0c2949064cb0f6ab40823a
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diff --git a/tools/copyright-reform/apply-headers.py b/tools/copyright-reform/apply-headers.py
new file mode 100755
index 000000000..d040ea0fb
--- /dev/null
+++ b/tools/copyright-reform/apply-headers.py
@@ -0,0 +1,257 @@
+#!/usr/bin/env python3
+"""Apply the canonical Apache-2.0 license header to OneBusAway source files.
+
+Part of the copyright-header reform (see tools/copyright-reform/CONSENT-REQUEST.md
+and the repo NOTICE file). The end state: every git-tracked .java/.kt file carries
+one identical header naming no individual copyright holder and no year -- the
+convention used by the Apache Software Foundation and Kubernetes. Historical per-file
+notices are preserved verbatim in NOTICE, not in the file.
+
+TRANSITION GRADUALLY VIA THE EXCLUDED-HOLDERS LIST
+--------------------------------------------------
+Relocating a holder's copyright notice needs that holder's authorization (see
+CONSENT-REQUEST.md). Rather than wait for every holder at once, we gate per holder:
+
+  * EXCLUDED_HOLDERS lists holders who have NOT yet authorized relocation.
+  * A file is migrated only when NONE of the holders named in its original header
+    are still excluded. A file naming several holders waits for the LAST of them.
+  * As each authorization arrives, delete that holder's entry and re-run. Files that
+    were blocked solely by that holder now migrate. Already-migrated files are
+    untouched (the rewrite is idempotent).
+
+So you can commit this tooling now with everyone excluded (migrates nothing), then
+lift holders one at a time. Removing the self-authorizing steward (OTSF) first
+migrates the ~500 OTSF-only files immediately.
+
+Third-party files (Android Open Source Project code) are handled separately by
+EXCEPTIONS (path-based) and are never touched -- their notices stay in-file per
+Apache-2.0 and ASF policy.
+
+Usage:
+    tools/copyright-reform/apply-headers.py            # migrate all now-eligible files
+    tools/copyright-reform/apply-headers.py --check    # CI: fail if an eligible file drifts
+    tools/copyright-reform/apply-headers.py --dry-run  # preview: what migrates, what's blocked
+"""
+
+from __future__ import annotations
+
+import argparse
+import re
+import subprocess
+import sys
+from collections import Counter
+from pathlib import Path
+
+# The canonical copyright holder string. Confirm this exact wording with OTSF before
+# running the migration; it also appears in NOTICE. Both the Linux Foundation and
+# ASF endorse a generic "The <Project> Authors" holder for CLA-based projects.
+HOLDER = "The OneBusAway Authors."
+
+# Body of the Apache-2.0 header, sans comment markers. Rendered per-language below.
+_HEADER_LINES = [
+    f"Copyright {HOLDER}",
+    "",
+    'Licensed under the Apache License, Version 2.0 (the "License");',
+    "you may not use this file except in compliance with the License.",
+    "You may obtain a copy of the License at",
+    "",
+    "     http://www.apache.org/licenses/LICENSE-2.0",
+    "",
+    "Unless required by applicable law or agreed to in writing, software",
+    'distributed under the License is distributed on an "AS IS" BASIS,',
+    "WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.",
+    "See the License for the specific language governing permissions and",
+    "limitations under the License.",
+]
+
+
+def canonical_header() -> str:
+    """The exact C-style block-comment header for .java/.kt files."""
+    out = ["/*"]
+    for line in _HEADER_LINES:
+        out.append(" *" if line == "" else f" * {line}")
+    out.append(" */")
+    return "\n".join(out)
+
+
+CANON = canonical_header()
+
+# ----------------------------------------------------------------------------------
+# Holders who have NOT yet authorized relocating their notice to NOTICE.
+#
+# Each entry: (human label, regex tested against a file's ORIGINAL copyright block).
+# A file is BLOCKED from migration while any of these patterns match its header.
+# Remove an entry once that holder's authorization is on file (record it under
+# tools/copyright-reform/consents/), then re-run this script.
+#
+# Patterns are case-insensitive and matched only against the copyright lines (the
+# Apache boilerplate below them is not considered), so they never match the canonical
+# header -- an already-migrated file names no holder and is never re-blocked.
+# ----------------------------------------------------------------------------------
+EXCLUDED_HOLDERS: list[tuple[str, str]] = [
+    # OTSF is the project steward and self-authorizing. Remove this entry FIRST to
+    # migrate the ~500 files whose only holder is OTSF. (Kept here initially so a bare
+    # run migrates nothing until a human deliberately lifts a holder.)
+    ("Open Transit Software Foundation (steward -- self-authorizing)",
+     r"Open Transit Software Foundation"),
+
+    ("Paul Watts",                    r"Paul Watts|paulcwatts"),
+    # USF (institution) and Barbeau (individual) are intertwined -- USF notices carry
+    # sjbarbeau@gmail.com, so USF-with-email files match both. Lift these two together
+    # when the USF/Barbeau authorization arrives.
+    ("University of South Florida",   r"University of South\s+Florida"),
+    ("Sean J. Barbeau",               r"Barbeau|sjbarbeau"),
+    ("Brian Ferris",                  r"Brian Ferris|bdferris"),
+    ("Microsoft Corporation",         r"Microsoft"),
+    ("Rodrigo Carvalho",              r"Rodrigo Carvalho|carvalhorr"),
+    ("Colin McDonough",               r"Colin McDonough"),
+    ("Cambridge Systematics, Inc.",   r"Cambridge Systematics"),
+    ("Benjamin Du",                   r"Benjamin Du|bendu"),
+    # The lone "Copyright (C) 2026 OneBusAway" notice. Anchored on "(C) <year>" so it
+    # does NOT match the canonical "Copyright The OneBusAway Authors." header.
+    ("OneBusAway (lone dated notice)", r"\(C\)\s*\d{4}\s+OneBusAway\b"),
+    # Generic catch-all text with no identifiable external party. Likely safe to lift
+    # early (covered by the project/ICLA), but left in by default -- a human decides.
+    ("individual contributors (generic)", r"individual contributors"),
+]
+
+_EXCLUDED = [(label, re.compile(rx, re.IGNORECASE)) for label, rx in EXCLUDED_HOLDERS]
+
+# Third-party files whose copyright notices must stay in-file (AOSP-derived). These
+# are never rewritten and never checked. Repo-relative POSIX paths.
+EXCEPTIONS = {
+    "onebusaway-android/src/main/java/org/onebusaway/android/util/MathUtils.java",
+    "onebusaway-android/src/main/java/org/onebusaway/android/util/PermissionUtils.java",
+    "onebusaway-android/src/androidTest/java/org/onebusaway/android/api/test/LoaderTestCase.java",
+}
+
+# Matches a leading C-style block comment (optionally preceded by BOM/whitespace).
+_LEADING_BLOCK = re.compile(r"\A(?:)?\s*/\*.*?\*/", re.DOTALL)
+
+
+def _copyright_region(text: str) -> str:
+    """The copyright portion of a leading license comment (before the Apache text)."""
+    m = _LEADING_BLOCK.match(text)
+    if not m:
+        return ""
+    block = m.group(0)
+    idx = block.find("Licensed under the Apache")
+    return block[:idx] if idx != -1 else block
+
+
+def blocking_holders(text: str) -> list[str]:
+    """Labels of still-excluded holders named in this file's original header."""
+    region = _copyright_region(text)
+    return [label for label, rx in _EXCLUDED if rx.search(region)]
+
+
+def is_canonical(text: str) -> bool:
+    return text.startswith(CANON)
+
+
+def rewritten(text: str) -> str:
+    """Return `text` with its leading license block replaced by the canonical header.
+
+    Only strips the existing leading block comment if it looks like a license/
+    copyright header, so a genuine leading doc-comment is never clobbered. Idempotent.
+    """
+    m = _LEADING_BLOCK.match(text)
+    if m and re.search(r"Copyright|Licensed under the Apache", m.group(0)):
+        remainder = text[m.end():]
+    else:
+        remainder = text
+    remainder = remainder.lstrip("\n")
+    if remainder == "":
+        return CANON + "\n"
+    return CANON + "\n\n" + remainder
+
+
+# Per-file classification, shared by run/check/dry-run.
+EXEMPT, CANONICAL, BLOCKED, MIGRATE = "exempt", "canonical", "blocked", "migrate"
+
+
+def classify(rel: str, text: str) -> tuple[str, list[str]]:
+    if rel in EXCEPTIONS:
+        return EXEMPT, []
+    if is_canonical(text):
+        return CANONICAL, []
+    blockers = blocking_holders(text)
+    if blockers:
+        return BLOCKED, blockers
+    return MIGRATE, []
+
+
+def repo_root() -> Path:
+    out = subprocess.run(["git", "rev-parse", "--show-toplevel"],
+                         check=True, capture_output=True, text=True)
+    return Path(out.stdout.strip())
+
+
+def tracked_sources(root: Path) -> list[Path]:
+    out = subprocess.run(["git", "ls-files", "*.java", "*.kt"],
+                         cwd=root, check=True, capture_output=True, text=True)
+    return [root / rel for rel in out.stdout.splitlines() if rel]
+
+
+def main() -> int:
+    ap = argparse.ArgumentParser(description=__doc__,
+                                 formatter_class=argparse.RawDescriptionHelpFormatter)
+    mode = ap.add_mutually_exclusive_group()
+    mode.add_argument("--check", action="store_true",
+                      help="CI mode: exit non-zero if an eligible file lacks the canonical header")
+    mode.add_argument("--dry-run", action="store_true",
+                      help="Preview what would migrate and what is blocked, without writing")
+    args = ap.parse_args()
+
+    root = repo_root()
+    migrated: list[str] = []
+    drifted: list[str] = []          # eligible (unblocked) but not canonical -> must migrate
+    blocked_by: Counter[str] = Counter()
+    n_blocked = n_canonical = n_exempt = 0
+
+    for path in tracked_sources(root):
+        rel = path.relative_to(root).as_posix()
+        text = path.read_text(encoding="utf-8")
+        kind, blockers = classify(rel, text)
+
+        if kind == EXEMPT:
+            n_exempt += 1
+        elif kind == CANONICAL:
+            n_canonical += 1
+        elif kind == BLOCKED:
+            n_blocked += 1
+            for label in blockers:
+                blocked_by[label] += 1
+        else:  # MIGRATE
+            if args.check:
+                drifted.append(rel)
+            else:
+                migrated.append(rel)
+                if not args.dry_run:
+                    path.write_text(rewritten(text), encoding="utf-8")
+
+    if args.check:
+        if drifted:
+            print(f"{len(drifted)} eligible file(s) do NOT have the canonical header:",
+                  file=sys.stderr)
+            for rel in drifted:
+                print(f"  {rel}", file=sys.stderr)
+            print("\nRun tools/copyright-reform/apply-headers.py to fix.", file=sys.stderr)
+            return 1
+        print(f"OK: every eligible file carries the canonical header "
+              f"({n_canonical} canonical, {n_blocked} awaiting consent, {n_exempt} third-party).")
+        return 0
+
+    verb = "Would migrate" if args.dry_run else "Migrated"
+    print(f"{verb} {len(migrated)} file(s).")
+    print(f"Already canonical: {n_canonical}. "
+          f"Blocked (awaiting consent): {n_blocked}. Third-party exempt: {n_exempt}.")
+    if blocked_by:
+        print("\nBlocked by holder (remove from EXCLUDED_HOLDERS as consent arrives):")
+        for label, n in sorted(blocked_by.items(), key=lambda kv: (-kv[1], kv[0])):
+            print(f"  {n:4d}  {label}")
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/tools/copyright-reform/consents/README.md b/tools/copyright-reform/consents/README.md
new file mode 100644
index 000000000..8ca45059f
--- /dev/null
+++ b/tools/copyright-reform/consents/README.md
@@ -0,0 +1,16 @@
+# Consent records
+
+One file per copyright holder who has authorized relocating their notice from the
+source-file headers to the repo `NOTICE` file (see `../CONSENT-REQUEST.md`).
+
+Record each authorization here — e.g. `paul-watts.md` — with:
+
+- the holder (and, for an organization, the authorizing person + role),
+- the date and channel (email thread, GitHub issue link, signed statement),
+- the affirmative text they gave, quoted, and
+- which notices/patterns it covers.
+
+Once a holder's consent is on file, remove their entry from `EXCLUDED_HOLDERS` in
+`../apply-headers.py` and re-run the script so their files migrate.
+
+Keep this as the durable audit trail; do not delete records after migrating.