--- a/mozilla/b2g_project_branches.py
+++ b/mozilla/b2g_project_branches.py
@@ -40,17 +40,68 @@ PROJECT_BRANCHES = {
         'lock_platforms': True,
         'platforms': {
             'linux32_gecko': {},
             'linux64_gecko': {},
             'linux64_gecko-debug': {},
             'linux64-mulet': {},
         },
     },
-    'ash': {},
+    'ash': {
+        'enable_nightly': True,
+        'platforms': {
+            'nexus-4': {
+                'enable_nightly': True,
+            },
+            'nexus-4_eng': {
+                'enable_nightly': True,
+                'consider_for_nightly': False,
+            },
+            'nexus-5-l': {
+                'enable_nightly': True,
+            },
+            'nexus-5-l_eng': {
+                'enable_nightly': True,
+                'consider_for_nightly': False,
+            },
+            'flame-kk': {
+                'enable_nightly': True,
+            },
+            'flame-kk_eng': {
+                'enable_nightly': True,
+            },
+            'emulator': {
+                'enable_nightly': True,
+            },
+            'emulator-debug': {
+                'enable_nightly': True,
+            },
+            'emulator-jb': {
+                'enable_nightly': True,
+            },
+            'emulator-jb-debug': {
+                'enable_nightly': True,
+            },
+            'linux64-b2g-haz': {
+                'enable_nightly': False,
+            },
+            'emulator-kk': {
+                'enable_nightly': True,
+            },
+            'emulator-kk-debug': {
+                'enable_nightly': True,
+            },
+            'dolphin': {
+                'enable_nightly': True,
+            },
+            'dolphin_eng': {
+                'enable_nightly': True,
+            },
+        },
+    },
     # Not needed on Birch at the moment, bug 977420.
     #'birch': {},
     'cedar': {
         'mozharness_tag': 'default',
     },
     'cypress': {},
     # B2G builds not required on date
     # 'date': {},