Opinion of the Court
from the "take" definition before S. 1983 went to the floor. See 119 Cong. Rec. 25663 (1973). We do not find that fact especially significant. The legislative materials contain no indication why the habitat protection provision was deleted. That provision differed greatly from the regulation at issue today. Most notably, the habitat protection provision in S. 1983 would have applied far more broadly than the regulation does because it made adverse habitat modification a categorical violation of the "take" prohibition, unbounded by the regulation's limitation to habitat modifications that actually kill or injure wildlife. The S. 1983 language also failed to qualify "modification" with the regulation's limiting adjective "significant." We do not believe the Senate's unelabo-rated disavowal of the provision in S. 1983 undermines the reasonableness of the more moderate habitat protection in the Secretary's "harm" regulation.19
19 Respondents place heavy reliance for their argument that Congress intended the § 5 land acquisition provision and not § 9 to be the ESA's remedy for habitat modification on a floor statement by Senator Tunney:
"Many species have been inadvertently exterminated by a negligent destruction of their habitat. Their habitats have been cut in size, polluted, or otherwise altered so that they are unsuitable environments for natural populations of fish and wildlife. Under this bill, we can take steps to make amends for our negligent encroachment. The Secretary would be empowered to use the land acquisition authority granted to him in certain existing legislation to acquire land for the use of the endangered species programs. . . . Through these land acquisition provisions, we will be able to conserve habitats necessary to protect fish and wildlife from further destruction.
"Although most endangered species are threatened primarily by the destruction of their natural habitats, a significant portion of these animals are subject to predation by man for commercial, sport, consumption, or other purposes. The provisions in S. 1983 would prohibit the commerce in or the importation, exportation, or taking of endangered species . . . ." 119 Cong. Rec. 25669 (1973).
Similarly, respondents emphasize a floor statement by Representative Sullivan, the House floor manager for the ESA:
"For the most part, the principal threat to animals stems from destruction of their habitat. . . . H. R. 37 will meet this problem by providingPage: Index Previous 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Next
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