(a)General. When an alien in the custody of DHS requests asylum or withholding of removal, or expresses a fear of persecution or harm upon return to his or her country of origin or to agents thereof, DHS shall make available the appropriate application forms and shall provide the applicant with the information required by section 208(d)(4) of the Act, including in the case of an alien who is in custody with a positive credible fear or reasonable fear determination under 8 CFR 208.30 or 208.31 , and