25 U.S.C. § 3118
Except as otherwise provided by this chapter, the Secretary is directed to promulgate final regulations for the implementation of the 1 chapter within eighteen months from . All regulations promulgated pursuant to this chapter shall be developed by the Secretary with the participation of the affected Indian tribes.
(Pub. L. 101–630, title III, § 319, , 104 Stat. 4544.)
1 So in original. Probably should be “this”.