; and (ii) regular mental health counseling to assist with the transition. (3) Protective custody units The Director— (A) shall establish within the Federal prison system additional general population protective custody units that provide sheltered general population housing to protect inmates from harm that they may otherwise be exposed to in a typical general population housing unit; (B) shall establish policies to ensure that an inmate who is considered a protection case shall, upon request of the inmate, be placed in a general population protective custody unit; (C) shall create an adequate number of general population protective custody units to— (i) accommodate the requests of inmates who are considered to be protection cases; and (ii) ensure that inmates who are considered to be protection cases are placed in facilities as close to their homes as practicable; and (D) may not place an inmate who is considered to be a protection case in solitary confinement due to the status of the inmate as a protection case unless— (i) the inmate requests to be placed in solitary confinement, in which case, at the request of the inmate the inmate shall be transferred to a general population protective custody unit or, if appropriate, a different general population unit; or (ii) such confinement is limited to— (I) not more than 5 days of administrative segregation; and (II) is necessary to protect the inmate during preparation for transfer to a general population protective custody unit or a different general population unit. (4) Vulnerable populations The Bureau of Prisons or any facility that contracts with the Bureau of Prisons shall not place an inmate in solitary confinement if— (A) the inmate is younger than 18 years of age, unless— (i) such confinement is a temporary response to the behavior of the inmate, which poses a substantial and immediate threat