21 U.S.C. § 123
Section 123 · Quarantine
Amended 4 times on record
The Secretary of Agriculture is authorized to quarantine by regulation any State or Territory or the District of Columbia, or any portion of any State or Territory or the District of Columbia, when he shall determine the fact that any animals or live poultry in such State or Territory or District of Columbia are affected with any contagious, infectious, or communicable disease of livestock or poultry or that the contagion of any such disease exists or that vectors which may disseminate any such disease exist in such State or Territory or the District of Columbia.
Editorial notes U.S. Code · Office of the Law Revision Counsel
Amendments
1978—Pub. L. 95–439 struck out provision requiring the Secretary of Agriculture to give written notice of the establishment of quarantine to the proper officials of railroads, steamboats, or other transportation systems and to publish notice of the establishment of quarantine in newspapers in the quarantined State or Territory or the District of Columbia.
1962—Pub. L. 87–518 authorized quarantine upon the determination that any animals or poultry are affected with a communicable disease of livestock or poultry or that the contagion of any such disease exists or that vectors which may disseminate any such disease exist.
1928—Act Feb. 7, 1928, inserted “and/or live poultry” after “livestock”.
Short Title
This section and sections 124 to 127 of this title are from act Mar. 3, 1905, entitled “An act to enable the Secretary of Agriculture to establish and maintain quarantine districts, to permit and regulate the movement of cattle and other live stock therefrom, and for other purposes and constitute the Cattle Contagious Diseases Act of 1905.”