--- a/taskcluster/taskgraph/transforms/signing.py
+++ b/taskcluster/taskgraph/transforms/signing.py
@@ -91,19 +91,17 @@ def make_task_description(config, jobs):
         dep_th_platform = dep_job.task.get('extra', {}).get(
             'treeherder', {}).get('machine', {}).get('platform', '')
         build_type = dep_job.attributes.get('build_type')
         build_platform = dep_job.attributes.get('build_platform')
         treeherder.setdefault('platform', _generate_treeherder_platform(
             dep_th_platform, build_platform, build_type
         ))
 
-        # TODO: Make non-nightly (i.e. windows CI builds) Tier 1 once green on
-        # central, inbound, autoland and try
-        treeherder.setdefault('tier', 1 if is_nightly else 3)
+        treeherder.setdefault('tier', 1)
         treeherder.setdefault('kind', 'build')
 
         label = job.get('label', "{}-signing".format(dep_job.label))
 
         attributes = copy_attributes_from_dependent_job(dep_job)
         attributes['signed'] = True
 
         if dep_job.attributes.get('chunk_locales'):