1. Short title This Act may be cited as the Federal Protective Service Reform Act of 2023 . 2. Federal protective service carrying and detention reform (a) Contract security personnel Section 1315 of title 40, United States Code, is amended by adding at the end the following: (h) Contract security personnel (1) Authorities for contract security personnel (A) Carrying of firearms The Secretary may authorize contract security personnel engaged in the protection of buildings and grounds that are owned, occupied, or secured by the General Services Administration Public Buildings Service to carry firearms to carry out the official duties of such personnel. (B) Detention without a warrant (i) In general A person authorized to carry a firearm under this subsection may, while in the performance of, and in connection with, official duties, detain an individual without a warrant for any offense against the United States committed in that person’s presence or for any felony cognizable under the laws of the United States if that person has reasonable grounds to believe that the individual to be detained has committed or is committing such felony. (ii) Clarification The detention authority conferred by this subparagraph is in addition to any detention authority provided under other laws. (2) Limitations The following limitations apply to the authority provided under this section: (A) Detention Contract security personnel authorized to carry firearms under this subsection may detain an individual only if the individual to be detained is within, or in direct flight from, the area of such offense. (B) Enforcement of certain laws A person granted authority to detain under this subsection may exercise such authority only to enforce laws regarding any building and grounds and all property located in or on that building and grounds that are owned, occupied, or secured by the General Services Administration Public Buildings Service. (3) Guidance The Secretary, with the approval of the Attorney General, shall issue guidelines to