21 U.S.C. § 609: Examination of animals and food products thereof, slaughtered and prepared during nighttime

The Secretary shall cause an examination and inspection of all amenable species, and the food products thereof, slaughtered and prepared in the establishments hereinbefore described for the purposes of commerce to be made during the nighttime as well as during the daytime when the slaughtering of said amenable species, or the preparation of said food products is conducted during the nighttime. Except as provided in subsection (b) of this section, this title and the amendments made by this title [amending this section and sections 606, 621, 671, and 676 of this title and enacting provisions set out as notes under this section and sections 606, 621, 671, and 676 of this title] shall become effective on the date of the enactment of this Act [ Nov. 10, 1986 ]. Sections 6, 9, and 21 of the Federal Meat Inspection Act ( 21 U.S.C. 606 , 609, and 621), as in effect immediately before the date of the enactment of this Act [ Nov. 10, 1986 ], shall apply with respect to establishments until the Secretary of Agriculture first issues rules and regulations to implement the amendments made by section 403(a) [amending section 606 of this title ].”