Subpart B. Subpart B—Specific Administrative Rulings and Decisions

• § 500.23 - Thermally processed low-acid foods packaged in hermetically sealed containers.
• § 500.24 - Emergency permit control.
• § 500.25 - Anthelmintic drugs for use in animals.
• § 500.26 - Timed-release dosage form drugs.
• § 500.27 - Methylene blue-containing drugs for use in animals.
• § 500.29 - Gentian violet for use in animal feed.
• § 500.30 - Gentian violet for animal drug use.
• § 500.45 - Use of polychlorinated biphenyls (PCB's) in the production, handling, and storage of animal feed.
• § 500.46 - Hexachlorophene in animal drugs.
• § 500.50 - Propylene glycol in or on cat food.