Trademark Manual of Examining Procedure
The Trademark Manual of Examining Procedure (TMEP) is a manual published by the United States Patent and Trademark Office (USPTO) for use by trademark attorneys and trademark examiners. It describes all of the laws and regulations that must be followed in order to apply for and maintain a trademark in the United States.
Source: Wikipedia — Trademark Manual of Examining Procedure (CC BY-SA 4.0)