A wrong answer key, a typo, a rule that changed since we went to print. We answer, we fix it in the next printing, and we log it publicly.
If you are reporting from inside a companion app, use the “report a problem” link under the question — it fills in the item ID for you.
We cannot tell you whether you are ready for your exam, book a test for you, or advise on your individual licensing situation. Our guides explain rules for study; the issuing agency’s current instructions always win, and every book says where to check them.
