Court of Appeals for the Ninth Circuit September 19, 1995, Nos. 94-35985, 94-36244 (Razore v. Tulalip Tribes of Washington)

DAVID R. THOMPSON, Circuit Judge:

Section 113(h) of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), 42 U.S.C. § 9613(h), bans all challenges to ongoing remedial or removal actions. The principal question in this appeal is whether a remedial investigation/feasibility study constitutes a removal or remedial action.

I.