In complying with the provisions of sections 603 and 604 of this title, an agency may provide either a quantifiable or numerical description of the effects of a proposed rule or alternatives to the proposed rule, or more general descriptive statements if quantification is not practicable or reliable.

(Added Pub. L. 96–354, § 3(a), Sept. 19, 1980, 94 Stat. 1168.)