1999—Subsec. (b). Pub. L. 106–113 substituted “natural resources” for “forestry” and substituted “National Forest System land resources” for “national forest resources” in two places.

1996—Subsec. (e). Pub. L. 104–127, § 753(b)(1)(A), struck out “, as defined in section 2008(b)(2) of this title,” before “during any”.

Subsec. (g). Pub. L. 104–127, § 753(b)(1)(B), added subsec. (g).