Any rabbit inspection system may be deemed to be acceptable to the Administrator which:

(a) Is conducted under the authority of laws, ordinances, or similar enactments of the State, county, city, or other political subdivision in which is located the official plant at which the ready-to-cook rabbits are prepared and

(b) Imposes at least the requirements set forth in §354.161: Provided, That no such inspection shall be deemed acceptable to the Administrator with respect to any official plant in which ready-to-cook rabbits are prepared if he finds at any time that such requirements are not adequately enforced.