Section 2.300 - What is the purpose of this subpart?(a) The purpose of this subpart is to implement the requirements of the Social Security Number Fraud Prevention Act of 2017 (the Act), Public Law 115-59 , 42 U.S.C. 405 note, September 15, 2017.(b) The Act: (1) Prohibits Federal agencies from including any individual's Social Security account number (SSN) on any document sent by mail unless the head of the agency determines that such inclusion is necessary; and(2) Requires agencies to issue regulations that specify the circumstances under which such inclusion is necessary.