In addition to the provisions discussed in the text, see Administrative Procedure Act, 5 U.S.C. 504(b)(1)(A) (added 1980) (reasonable expenses of expert witnesses . . . and reasonable attorney or agent fees"); Federal Trade Commission Act, 15 U.S.C. 57a(h)(1) (added 1975) (reasonable attorneys' fees, expert witness fees and other costs of participating in a rulemaking proceeding); Petroleum Mar