; and (C) to implement secure alternatives that allow U.S. Immigration and Customs Enforcement to maintain custody over the alien. (3) Assessments The Secretary shall regularly assess the demand for alternative to detention programs and make available sufficient alternative to detention slots regardless of proximity to available detention beds. Alternative programs shall offer a continuum of supervision mechanisms and options, including community support, depending on an assessment of each individual’s circumstances. Information regarding the amount of slots available in each area shall be made public. (4) Individualized determinations In determining whether to use alternatives to detention programs, the Secretary shall make an individualized determination, and for each individual placed in an alternatives to detention program, shall review the level of supervision on a monthly basis. Alternatives to detention programs shall not be used when release on bond or recognizance is determined to be a sufficient measure to ensure appearances at immigration proceedings and public safety. Detention shall not be used when alternatives to detention programs are determined to be a sufficient measure to ensure appearances at immigration proceedings and public safety. (5) Custody The Secretary may use alternatives to detention programs to maintain custody over any alien detained under the Immigration and Nationality Act, except for aliens detained under section 236A of such Act ( 8 U.S.C. 1226a ). If an individual is not eligible for release from custody or detention, the Secretary shall consider the alien for placement in alternative programs that maintain custody over the alien. (6) Vulnerable populations (A) Defined term In this paragraph, the term vulnerable population includes, but is not limited to, asylum seekers, victims of torture or trafficking, families with minor children, pregnant women, nursing mothers, individuals who are gay, lesbian, bisexual, or transgender, individuals with a mental or physical disability,