42 C.F.R. § 136.416
The IHS must deny employment to an individual or dismiss an employee, when the duties and responsibilities of the position the individual person would hold or holds involve regular contact with or control over Indian children, and it has been adjudicated, pursuant to § 136.414 and § 136.415 , that the individual has been found guilty of, or entered a plea of guilty or nolo contendere to, any felonious offense, or any of two or more misdemeanor offenses, under Federal, State or Tribal law involving a crime of violence; sexual assault, molestation, exploitation, contact, or prostitution; crimes against persons; or offenses committed against children. The IHS has the discretion to place such an individual in a position, if available, that does not involve regular contact with or control over Indian children, if a determination has been made that such placement would not put Indian children at risk and the individual would be able to perform the duties and responsibilities of this position.
42 C.F.R. §136.416