(a) This subtitle does not affect:
(1) the authority granted under Subtitles 1 and 7 of this title; or
(2) a work release program established under Subtitles 1 and 7 of this title.
(b) (1) With the approval of the Secretary, a county may convert a work release program established under Subtitles 1 and 7 of this title into a center that is subject to this subtitle.
(2) The Secretary shall adopt regulations for the conversion of a work release program into a center.