30 U.S.C. § 661
(b) In this chapter:
(Pub. L. 86–599, § 1, as added Pub. L. 109–58, title X, § 1009(a)(1)(A), , 119 Stat. 934.)
A prior section 661, Pub. L. 86–599, § 1, , 74 Stat. 336, defined terms for purposes of this chapter, prior to repeal by Pub. L. 109–58, title X, § 1009(a)(1)(A), , 119 Stat. 934.