Specifications include, but are not limited to: PROGRAM-SPECIFIC REQUIREMENTS: Jail-based programs must engage participants for at least three months and must make an effort to segregate the participants from the general jail population to the extent it is feasible. Pursuant to 34 U.S.C. 10422(c), in order to be eligible for RSAT funding the subgrantee must ensure that individuals who participate in the program are provided with aftercare services. These services must involve coordination between the correctional facility and other social service and rehabilitation programs such as education and job training, parole/probation supervision, halfway houses, self-help, and peer group programs. Failure to comply with the aftercare portion of the grant requirement will render the subgrantee ineligible for funding, which may result in the subrecipient being required to repay any grant funding previously expended. Prison-based programs must engage participants for a period between six months and twelve months, and must segregate the treatment group from the general population for the duration of the program. Random drug testing is mandatory, both during residential treatment and once the participant is released into the community. Fidelity to evidence-based substance use disorder treatment modalities is required.