28 CFR § 115.63
Reporting to other confinement facilities
July 24, 2020
(a) Upon receiving an allegation that an inmate was sexually abused while confined at another facility, the head of the facility that received the allegation shall notify the head of the facility or appropriate office of the agency where the alleged abuse occurred.
(b) Such notification shall be provided as soon as possible, but no later than 72 hours after receiving the allegation.
(c) The agency shall document that it has provided such notification.
(d) The facility head or agency office that receives such notification shall ensure that the allegation is investigated in accordance with these standards.