What does the IMM stand for?

The term IMM stands for the International Mail Manual. This manual serves as a critical reference document that outlines the policies, procedures, and guidelines for handling international mail within the United States Postal Service. It encompasses a wide range of topics including customs requirements, labeling, packaging guidelines, and international service options. Understanding the content and structure of the IMM is essential for retail clerks to effectively assist customers with international shipments, ensuring compliance with regulations and enhancing customer service. The other options do not represent an actual document or standard used by the USPS in the context of international mail.