# § 7671l. Federal procurement
November 15, 1990section 7671k of this titleNovember 15, 1990
Not later than 18 months after , the Administrator, in consultation with the Administrator of the General Services Administration and the Secretary of Defense, shall promulgate regulations requiring each department, agency, and instrumentality of the United States to conform its procurement regulations to the policies and requirements of this subchapter and to maximize the substitution of safe alternatives identified under for class I and class II substances. Not later than 30 months after , each department, agency, and instrumentality of the United States shall so conform its procurement regulations and certify to the President that its regulations have been modified in accordance with this section.
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**Source Credit**: (July 14, 1955, ch. 360, title VI, § 613, as added Pub. L. 101–549, title VI, § 602(a), Nov. 15, 1990, 104 Stat. 2668.)
## Executive Documents
### Executive Order No. 12843
Ex. Ord. No. 12843, , 58 F.R. 21881, which provided for Federal agencies to implement policies and programs to minimize procurement of ozone-depleting substances, was revoked by Ex. Ord. No. 13148, § 901, , 65 F.R. 24604, formerly set out as a note under .