diff --git a/procedures/release-duty/faq/faq.rst b/procedures/release-duty/faq/faq.rst
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+++ b/procedures/release-duty/faq/faq.rst
@@ -0,0 +1,29 @@
+FAQ
+===
+
+This piece of docs tracks frequently-asked-questions during our releaseduty cycles.
+
+Adding a new locale into Product-Details
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+`Product details`_ is a public JSON API which contains release
+information for Mozilla products. More information on this can be found
+in `here`_.
+
+Each time a new locale is being added so that we’re able to
+ship a newly-localized Firefox in a different language, RelEng gets involved.
+In order for that to happen, the l10n team adds the corresponding builds as a
+pre-requisite. Then, they likely ping releaseduty: PR like `this`_ or
+`this <https://github.com/mozilla-releng/product-details/pull/9>`__ are
+opened against Product-details. TODO for releaseduty:
+
+
+- double-check that the PR is listing another locale in the ``public/1.0/languages.json`` file. See samples PRs like `this`_ or `this <https://github.com/mozilla-releng/product-details/pull/9>`__ from the past
+- review and merge the PR, either directly into ``production`` or via ``main`` and then follow-up with a push to ``production``
+- wait for the Taskcluster CI to run successfully. Behind the scenes, the CI is cloning the repo resources and pushes them to a S3 bucket
+- once the CI is green, trigger the Product-Details rebuild via Ship-it: |product-details-rebuild|
+
+.. _Product details: https://product-details.mozilla.org/1.0/
+.. _here: https://wiki.mozilla.org/Release_Management/Product_details
+.. _this: https://github.com/mozilla-releng/product-details/pull/10
+.. |product-details-rebuild| image:: /procedures/release-duty/faq/media/product-details-rebuild.png
diff --git a/procedures/release-duty/faq/media/product-details-rebuild.png b/procedures/release-duty/faq/media/product-details-rebuild.png
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diff --git a/procedures/release-duty/index.rst b/procedures/release-duty/index.rst
index 4fff3235..f51304de 100644
--- a/procedures/release-duty/index.rst
+++ b/procedures/release-duty/index.rst
@@ -8,6 +8,7 @@ Contents:
     :glob:
 
     desktop/*
+    faq/*
     mobile/*
     merge-duty/*
 
@@ -213,7 +214,7 @@ taskgroup in the inspector.
 After ReleaseDuty
 -----------------
 
-After your tour of releaseduty, In the past it was  customary to fix any documentation 
+After your tour of releaseduty, In the past it was  customary to fix any documentation
 or automation issues discovered.  Now make sure you file any bugs so issues can be included
 in a future sprint or work cycle.