diff --git a/automation/taskcluster/l10n/locales.py b/automation/taskcluster/l10n/locales.py
index 5e2e80fe1..80c87bc2c 100644
--- a/automation/taskcluster/l10n/locales.py
+++ b/automation/taskcluster/l10n/locales.py
@@ -8,7 +8,7 @@ from __future__ import absolute_import, print_function, unicode_literals
 
 import re
 
-OPEN_LOCALES = "locales = ["
+OPEN_LOCALES = "release_locales = ["
 CLOSE_LOCALES = "]"
 
 def trim_to_locale(str):
@@ -42,7 +42,7 @@ def get_release_locales():
     for line in file:
         if line == OPEN_LOCALES:
             locales_opened = True
-        elif line == CLOSE_LOCALES:
+        elif line == CLOSE_LOCALES and locales_opened == True:
             locales_closed = True
             break
         elif locales_opened:
diff --git a/l10n.toml b/l10n.toml
index 208d698a0..bb0d019f2 100644
--- a/l10n.toml
+++ b/l10n.toml
@@ -1,6 +1,7 @@
 
 basepath = "."
 
+# Locales that should be present in non-release builds and on Pontoon
 locales = [
   "an",
   "ar",
@@ -94,6 +95,97 @@ locales = [
   "zh-TW",
 ]
 
+# Locales that should be present in release builds
+# Locales that are at 70% or higher completion on https://pontoon.mozilla.org/projects/android-l10n/
+# should be in this list
+release_locales = [
+  "an",
+  "ar",
+  "ast",
+  "az",
+  "be",
+  "bn",
+  "br",
+  "bs",
+  "ca",
+  "cak",
+  "co",
+  "cs",
+  "cy",
+  "da",
+  "de",
+  "dsb",
+  "el",
+  "en-CA",
+  "en-GB",
+  "eo",
+  "es",
+  "es-AR",
+  "es-CL",
+  "es-ES",
+  "es-MX",
+  "et",
+  "eu",
+  "fa",
+  "ff",
+  "fi",
+  "fr",
+  "fy-NL",
+  "ga-IE",
+  "gd",
+  "gn",
+  "gu-IN",
+  "he",
+  "hi-IN",
+  "hr",
+  "hsb",
+  "hu",
+  "hy-AM",
+  "id",
+  "is",
+  "it",
+  "ja",
+  "ka",
+  "kab",
+  "kk",
+  "kn",
+  "ko",
+  "lij",
+  "lo",
+  "lt",
+  "ml",
+  "mr",
+  "my",
+  "nb-NO",
+  "nl",
+  "nn-NO",
+  "oc",
+  "pa-IN",
+  "pl",
+  "pt-BR",
+  "pt-PT",
+  "rm",
+  "ro",
+  "ru",
+  "sk",
+  "sl",
+  "sq",
+  "sr",
+  "su",
+  "sv-SE",
+  "ta",
+  "te",
+  "th",
+  "tr",
+  "trs",
+  "uk",
+  "ur",
+  "vec",
+  "vi",
+  "zh-CN",
+  "zh-TW",
+]
+
 # Expose the following branches to localization
 # Changes to this list should be announced to the l10n team ahead of time.
 branches = [