9 C.F.R. § 560.4
Designation of States under the Federal Meat Inspection Act
The following requirements apply with respect to fish and fish products inspection:
(a) The requirements in 9 CFR 331.3 governing the designation of States for Federal inspection under section 301(c) of the Act (21 U.S.C. 661(c));
(b) The requirements in 9 CFR 331.5 governing the designation under section 301(c) of the Act of establishments whose operations would clearly endanger the public health; and
(c) The requirements governing the designation of States under section 205 of the Act.