6-2 National Contact — Product Classification, USPS Headquarters

National administrative responsibility of the PES is under the jurisdiction of the manager of Mailing Standards. If information is needed on a specific application or potential violation of the PES, call 202-268-7281/7261 or write to the following address:

MANAGER OF Product Classification
UNITED STATES POSTAL SERVICE
475 L’ENFANT PLZ SW RM 4446
WASHINGTON DC 20260-4446