diff --git a/its-base/src/main/java/com/googlesource/gerrit/plugins/hooks/its/ItsConfig.java b/its-base/src/main/java/com/googlesource/gerrit/plugins/hooks/its/ItsConfig.java
index 2a5ba9f..87758d6 100644
--- a/its-base/src/main/java/com/googlesource/gerrit/plugins/hooks/its/ItsConfig.java
+++ b/its-base/src/main/java/com/googlesource/gerrit/plugins/hooks/its/ItsConfig.java
@@ -14,8 +14,10 @@
 
 package com.googlesource.gerrit.plugins.hooks.its;
 
+import com.google.gerrit.common.data.RefConfigSection;
 import com.google.gerrit.extensions.annotations.PluginName;
 import com.google.gerrit.reviewdb.client.Project;
+import com.google.gerrit.server.CurrentUser;
 import com.google.gerrit.server.config.PluginConfig;
 import com.google.gerrit.server.config.PluginConfigFactory;
 import com.google.gerrit.server.events.ChangeAbandonedEvent;
@@ -27,7 +29,9 @@
 import com.google.gerrit.server.events.RefUpdatedEvent;
 import com.google.gerrit.server.project.ProjectCache;
 import com.google.gerrit.server.project.ProjectState;
+import com.google.gerrit.server.project.RefPatternMatcher;
 import com.google.inject.Inject;
+import com.google.inject.Provider;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -38,35 +42,43 @@
   private final String pluginName;
   private final ProjectCache projectCache;
   private final PluginConfigFactory pluginCfgFactory;
+  private final Provider<CurrentUser> self;
 
   @Inject
   public ItsConfig(@PluginName String pluginName, ProjectCache projectCache,
-      PluginConfigFactory pluginCfgFactory) {
+      PluginConfigFactory pluginCfgFactory, Provider<CurrentUser> self) {
     this.pluginName = pluginName;
     this.projectCache = projectCache;
     this.pluginCfgFactory = pluginCfgFactory;
+    this.self = self;
   }
 
   public boolean isEnabled(ChangeEvent event) {
     if (event instanceof PatchSetCreatedEvent) {
-      return isEnabled(((PatchSetCreatedEvent) event).change.project);
+      PatchSetCreatedEvent e = (PatchSetCreatedEvent) event;
+      return isEnabled(e.change.project, e.change.branch);
     } else if (event instanceof CommentAddedEvent) {
-      return isEnabled(((CommentAddedEvent) event).change.project);
+      CommentAddedEvent e = (CommentAddedEvent) event;
+      return isEnabled(e.change.project, e.change.branch);
     } else if (event instanceof ChangeMergedEvent) {
-      return isEnabled(((ChangeMergedEvent) event).change.project);
+      ChangeMergedEvent e = (ChangeMergedEvent) event;
+      return isEnabled(e.change.project, e.change.branch);
     } else if (event instanceof ChangeAbandonedEvent) {
-      return isEnabled(((ChangeAbandonedEvent) event).change.project);
+      ChangeAbandonedEvent e = (ChangeAbandonedEvent) event;
+      return isEnabled(e.change.project, e.change.branch);
     } else if (event instanceof ChangeRestoredEvent) {
-      return isEnabled(((ChangeRestoredEvent) event).change.project);
+      ChangeRestoredEvent e = (ChangeRestoredEvent) event;
+      return isEnabled(e.change.project, e.change.branch);
     } else if (event instanceof RefUpdatedEvent) {
-      return isEnabled(((RefUpdatedEvent) event).refUpdate.project);
+      RefUpdatedEvent e = (RefUpdatedEvent) event;
+      return isEnabled(e.refUpdate.project, e.refUpdate.refName);
     } else {
       log.debug("Event " + event + " not recognised and ignored");
       return false;
     }
   }
 
-  public boolean isEnabled(String project) {
+  public boolean isEnabled(String project, String branch) {
     ProjectState projectState = projectCache.get(new Project.NameKey(project));
     if (projectState == null) {
       log.error("Failed to check if " + pluginName + " is enabled for project "
@@ -77,12 +89,34 @@
     for (ProjectState parentState : projectState.treeInOrder()) {
       PluginConfig parentCfg =
           pluginCfgFactory.getFromProjectConfig(parentState, pluginName);
-      if ("enforced".equals(parentCfg.getString("enabled"))) {
+      if ("enforced".equals(parentCfg.getString("enabled"))
+          && isEnabledForBranch(parentState, branch)) {
         return true;
       }
     }
 
     return pluginCfgFactory.getFromProjectConfigWithInheritance(
-        projectState, pluginName).getBoolean("enabled", false);
+        projectState, pluginName).getBoolean("enabled", false)
+        && isEnabledForBranch(projectState, branch);
+  }
+
+  private boolean isEnabledForBranch(ProjectState project, String branch) {
+    String[] refPatterns =
+        pluginCfgFactory.getFromProjectConfigWithInheritance(project,
+            pluginName).getStringList("branch");
+    if (refPatterns.length == 0) {
+      return true;
+    }
+    for (String refPattern : refPatterns) {
+      if (RefConfigSection.isValid(refPattern) && match(branch, refPattern)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  private boolean match(String branch, String refPattern) {
+    return RefPatternMatcher.getMatcher(refPattern)
+        .match(branch, self.get().getUserName());
   }
 }
diff --git a/its-base/src/main/java/com/googlesource/gerrit/plugins/hooks/validation/ItsValidateComment.java b/its-base/src/main/java/com/googlesource/gerrit/plugins/hooks/validation/ItsValidateComment.java
index bf00f13..f47889e 100644
--- a/its-base/src/main/java/com/googlesource/gerrit/plugins/hooks/validation/ItsValidateComment.java
+++ b/its-base/src/main/java/com/googlesource/gerrit/plugins/hooks/validation/ItsValidateComment.java
@@ -154,7 +154,7 @@
   @Override
   public List<CommitValidationMessage> onCommitReceived(
       CommitReceivedEvent receiveEvent) throws CommitValidationException {
-    if (itsConfig.isEnabled(receiveEvent.project.getName())) {
+    if (itsConfig.isEnabled(receiveEvent.project.getName(), receiveEvent.refName)) {
       return validCommit(receiveEvent.command, receiveEvent.commit);
     } else {
       return Collections.emptyList();
diff --git a/its-base/src/main/resources/Documentation/config.md b/its-base/src/main/resources/Documentation/config.md
index f0de506..2b50952 100644
--- a/its-base/src/main/resources/Documentation/config.md
+++ b/its-base/src/main/resources/Documentation/config.md
@@ -55,6 +55,21 @@
 integration for all child projects by setting
 `plugin.<its-name>.enabled` to `enforced`.
 
+The issue tracker system integration can be limited to specific
+branches by setting `plugin.<its-name>.branch`. The branches may be
+configured using explicit branch names, ref patterns, or regular
+expressions. Multiple branches may be specified.
+
+E.g. to limit the issue tracker system integration to the `master`
+branch and all stable branches the following could be configured:
+
+```
+  [plugin "<its-name>"]
+    enabled = true
+    branch = refs/heads/master
+    branch = ^refs/heads/stable-.*
+```
+
 
 [[config-rule-base]]
 Rule base for Actions
diff --git a/its-base/src/test/java/com/googlesource/gerrit/plugins/hooks/validation/ItsValidateCommentTest.java b/its-base/src/test/java/com/googlesource/gerrit/plugins/hooks/validation/ItsValidateCommentTest.java
index beb4a9a..eee33cc 100644
--- a/its-base/src/test/java/com/googlesource/gerrit/plugins/hooks/validation/ItsValidateCommentTest.java
+++ b/its-base/src/test/java/com/googlesource/gerrit/plugins/hooks/validation/ItsValidateCommentTest.java
@@ -512,9 +512,9 @@
       itsFacade = createMock(ItsFacade.class);
       bind(ItsFacade.class).toInstance(itsFacade);
 
-      bind(ItsConfig.class).toInstance(new ItsConfig(null, null, null) {
+      bind(ItsConfig.class).toInstance(new ItsConfig(null, null, null, null) {
         @Override
-        public boolean isEnabled(String project) {
+        public boolean isEnabled(String project, String branch) {
           return true;
         }
       });
diff --git a/its-base/src/test/java/com/googlesource/gerrit/plugins/hooks/workflow/ActionControllerTest.java b/its-base/src/test/java/com/googlesource/gerrit/plugins/hooks/workflow/ActionControllerTest.java
index 7266d81..9668d7d 100644
--- a/its-base/src/test/java/com/googlesource/gerrit/plugins/hooks/workflow/ActionControllerTest.java
+++ b/its-base/src/test/java/com/googlesource/gerrit/plugins/hooks/workflow/ActionControllerTest.java
@@ -198,7 +198,7 @@
       actionExecutor = createMock(ActionExecutor.class);
       bind(ActionExecutor.class).toInstance(actionExecutor);
 
-      bind(ItsConfig.class).toInstance(new ItsConfig(null, null, null) {
+      bind(ItsConfig.class).toInstance(new ItsConfig(null, null, null, null) {
         @Override
         public boolean isEnabled(ChangeEvent event) {
           return true;