29 CFR § 515.7
Transmission of official mail
July 28, 2023
§ 515.7 Transmission of official mail.
Subject to the requirements of law and of the regulations of the Post Office Department, franked self-addressed envelopes may be used for communications from the field staff to a State official designated by the Division and the Secretary of Labor, and for communication from the State agency to the Division or the Secretary of Labor.