Page:United States Reports, Volume 542.djvu/94

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No. 03-101.

(a) A § 706(1) claim can proceed only where a plaintiff asserts that an agency failed to take a discrete agency action that it is required to take. The discrete action limitation precludes a broad programmatic attack such as that rejected in Lujan v. National Wildlife Federation,, and the required action limitation rules out judicial direction of even discrete agency action that is not demanded by law. Pp. 61–65.

(b) SUWA ﬁrst claims that BLM violated § 1782(c)'s nonimpairment mandate by permitting ORV use in certain WSAs. While § 1782(c) is mandatory as to the object to be achieved, it leaves BLM discretion to decide how to achieve that object. SUWA argues that the nonimpairment mandate will support an APA suit, but a general deficiency in compliance lacks the requisite specificity. The principal purpose of this