diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 1473ae01..3678a0ac 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -4,8 +4,9 @@
 # For syntax help see:
 # https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners#codeowners-syntax
 
-# The @googleapis/api-bigquery is the default owner for changes in this repo
-*               @googleapis/api-bigquery @googleapis/yoshi-python
 
-# The python-samples-reviewers team is the default owner for samples changes
-/samples/   @googleapis/python-samples-owners @googleapis/api-bigquery @googleapis/yoshi-python
+# @googleapis/yoshi-python and @googleapis/api-bigquery are the default owners for changes in this repo
+*     @googleapis/yoshi-python @googleapis/api-bigquery
+
+# @googleapis/python-samples-owners and @googleapis/api-bigquery are the default owners for samples changes
+/samples/   @googleapis/python-samples-owners @googleapis/api-bigquery
diff --git a/.kokoro/build.sh b/.kokoro/build.sh
index 08a86db8..d45fa521 100755
--- a/.kokoro/build.sh
+++ b/.kokoro/build.sh
@@ -41,7 +41,7 @@ python3 -m pip install --upgrade --quiet nox
 python3 -m nox --version
 
 # If this is a continuous build, send the test log to the FlakyBot.
-# See https://github.com/googleapis/repo-automation-bots/tree/main/packages/flakybot.
+# See https://github.com/googleapis/repo-automation-bots/tree/master/packages/flakybot.
 if [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"continuous"* ]]; then
   cleanup() {
     chmod +x $KOKORO_GFILE_DIR/linux_amd64/flakybot
diff --git a/.kokoro/test-samples-impl.sh b/.kokoro/test-samples-impl.sh
index 8a324c9c..311a8d54 100755
--- a/.kokoro/test-samples-impl.sh
+++ b/.kokoro/test-samples-impl.sh
@@ -80,7 +80,7 @@ for file in samples/**/requirements.txt; do
     EXIT=$?
 
     # If this is a periodic build, send the test log to the FlakyBot.
-    # See https://github.com/googleapis/repo-automation-bots/tree/main/packages/flakybot.
+    # See https://github.com/googleapis/repo-automation-bots/tree/master/packages/flakybot.
     if [[ $KOKORO_BUILD_ARTIFACTS_SUBDIR = *"periodic"* ]]; then
       chmod +x $KOKORO_GFILE_DIR/linux_amd64/flakybot
       $KOKORO_GFILE_DIR/linux_amd64/flakybot
diff --git a/.repo-metadata.json b/.repo-metadata.json
index 9d9df181..967e9f3a 100644
--- a/.repo-metadata.json
+++ b/.repo-metadata.json
@@ -10,5 +10,6 @@
   "repo": "googleapis/python-bigquery-datatransfer",
   "distribution_name": "google-cloud-bigquery-datatransfer",
   "api_id": "bigquerydatatransfer.googleapis.com",
-  "requires_billing": true
-}
\ No newline at end of file
+  "requires_billing": true,
+  "codeowner_team": "@googleapis/api-bigquery"
+}
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 1498226b..26ea1fac 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -50,9 +50,9 @@ You'll have to create a development environment using a Git checkout:
    # Configure remotes such that you can pull changes from the googleapis/python-bigquery-datatransfer
    # repository into your local repository.
    $ git remote add upstream git@github.com:googleapis/python-bigquery-datatransfer.git
-   # fetch and merge changes from upstream into main
+   # fetch and merge changes from upstream into master
    $ git fetch upstream
-   $ git merge upstream/main
+   $ git merge upstream/master
 
 Now your local repo is set up such that you will push changes to your GitHub
 repo, from which you can submit a pull request.
@@ -110,12 +110,12 @@ Coding Style
   variables::
 
    export GOOGLE_CLOUD_TESTING_REMOTE="upstream"
-   export GOOGLE_CLOUD_TESTING_BRANCH="main"
+   export GOOGLE_CLOUD_TESTING_BRANCH="master"
 
   By doing this, you are specifying the location of the most up-to-date
   version of ``python-bigquery-datatransfer``. The the suggested remote name ``upstream``
   should point to the official ``googleapis`` checkout and the
-  the branch should be the main branch on that remote (``main``).
+  the branch should be the main branch on that remote (``master``).
 
 - This repository contains configuration for the
   `pre-commit <https://pre-commit.com/>`__ tool, which automates checking
@@ -209,7 +209,7 @@ The `description on PyPI`_ for the project comes directly from the
 ``README``. Due to the reStructuredText (``rst``) parser used by
 PyPI, relative links which will work on GitHub (e.g. ``CONTRIBUTING.rst``
 instead of
-``https://github.com/googleapis/python-bigquery-datatransfer/blob/main/CONTRIBUTING.rst``)
+``https://github.com/googleapis/python-bigquery-datatransfer/blob/master/CONTRIBUTING.rst``)
 may cause problems creating links or rendering the description.
 
 .. _description on PyPI: https://pypi.org/project/google-cloud-bigquery-datatransfer
@@ -234,7 +234,7 @@ We support:
 
 Supported versions can be found in our ``noxfile.py`` `config`_.
 
-.. _config: https://github.com/googleapis/python-bigquery-datatransfer/blob/main/noxfile.py
+.. _config: https://github.com/googleapis/python-bigquery-datatransfer/blob/master/noxfile.py
 
 
 We also explicitly decided to support Python 3 beginning with version 3.6.
diff --git a/docs/conf.py b/docs/conf.py
index d55d2469..0081ead1 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -76,8 +76,8 @@
 # The encoding of source files.
 # source_encoding = 'utf-8-sig'
 
-# The root toctree document.
-root_doc = "index"
+# The master toctree document.
+master_doc = "index"
 
 # General information about the project.
 project = "google-cloud-bigquery-datatransfer"
@@ -280,7 +280,7 @@
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
     (
-        root_doc,
+        master_doc,
         "google-cloud-bigquery-datatransfer.tex",
         "google-cloud-bigquery-datatransfer Documentation",
         author,
@@ -315,7 +315,7 @@
 # (source start file, name, description, authors, manual section).
 man_pages = [
     (
-        root_doc,
+        master_doc,
         "google-cloud-bigquery-datatransfer",
         "google-cloud-bigquery-datatransfer Documentation",
         [author],
@@ -334,7 +334,7 @@
 #  dir menu entry, description, category)
 texinfo_documents = [
     (
-        root_doc,
+        master_doc,
         "google-cloud-bigquery-datatransfer",
         "google-cloud-bigquery-datatransfer Documentation",
         author,
diff --git a/owlbot.py b/owlbot.py
index 8e813ea1..08dd3376 100644
--- a/owlbot.py
+++ b/owlbot.py
@@ -56,63 +56,6 @@
 
 python.py_samples(skip_readmes=True)
 
-# Remove the replacements below once
-# https://github.com/googleapis/synthtool/pull/1188 is merged
-
-# Update googleapis/repo-automation-bots repo to main in .kokoro/*.sh files
-s.replace(
-    ".kokoro/*.sh", "repo-automation-bots/tree/master", "repo-automation-bots/tree/main"
-)
-
-# Customize CONTRIBUTING.rst to replace master with main
-s.replace(
-    "CONTRIBUTING.rst",
-    "fetch and merge changes from upstream into master",
-    "fetch and merge changes from upstream into main",
-)
-
-s.replace(
-    "CONTRIBUTING.rst",
-    "git merge upstream/master",
-    "git merge upstream/main",
-)
-
-s.replace(
-    "CONTRIBUTING.rst",
-    """export GOOGLE_CLOUD_TESTING_BRANCH=\"master\"""",
-    """export GOOGLE_CLOUD_TESTING_BRANCH=\"main\"""",
-)
-
-s.replace(
-    "CONTRIBUTING.rst",
-    "remote \(``master``\)",
-    "remote (``main``)",
-)
-
-s.replace(
-    "CONTRIBUTING.rst",
-    "blob/master/CONTRIBUTING.rst",
-    "blob/main/CONTRIBUTING.rst",
-)
-
-s.replace(
-    "CONTRIBUTING.rst",
-    "blob/master/noxfile.py",
-    "blob/main/noxfile.py",
-)
-
-s.replace(
-    "docs/conf.py",
-    "master_doc",
-    "root_doc",
-)
-
-s.replace(
-    "docs/conf.py",
-    "# The master toctree document.",
-    "# The root toctree document.",
-)
-
 s.shell.run(["nox", "-s", "blacken"], hide_output=False)
 for noxfile in REPO_ROOT.glob("samples/**/noxfile.py"):
     s.shell.run(["nox", "-s", "blacken"], cwd=noxfile.parent, hide_output=False)