Individuals means persons with duties and responsibilities that involve regular contact with or control over Indian children and includes but is not limited to the following:
(a) Persons in the competitive or excepted service (including temporary employment), the Commissioned Corps, or the Senior Executive Service in the IHS;
(b) Persons who perform service for or under the supervision of the IHS while being permanently assigned to another IHS office or to another organization, such as a Federal agency, State, or Tribe;
(c) Persons who volunteer to perform services in IHS facilities;
(d) Persons who contract with the IHS to perform services in IHS facilities.