• Part 500 [§ 500.23 - § 500.1410] - PART 500—GENERAL

• Part 501 [§ 501.1 - § 501.110] - PART 501—ANIMAL FOOD LABELING

• Part 502 [§ 502.5 - § 502.19] - PART 502—COMMON OR USUAL NAMES FOR NONSTANDARDIZED ANIMAL FOODS

• Part 507 [§ 507.1 - § 507.215] - PART 507—CURRENT GOOD MANUFACTURING PRACTICE, HAZARD ANALYSIS, AND RISK-BASED PREVENTIVE CONTROLS FOR FOOD FOR ANIMALS

• Part 509 [§ 509.3 - § 509.30] - PART 509—UNAVOIDABLE CONTAMINANTS IN ANIMAL FOOD AND FOOD-PACKAGING MATERIAL

• Part 510 [§ 510.3 - § 510.600] - PART 510—NEW ANIMAL DRUGS

• Part 511 [§ 511.1 - § 511.3] - PART 511—NEW ANIMAL DRUGS FOR INVESTIGATIONAL USE

• Part 514 [§ 514.1 - § 514.235] - PART 514—NEW ANIMAL DRUG APPLICATIONS

• Part 515 [§ 515.10 - § 515.40] - PART 515—MEDICATED FEED MILL LICENSE

• Part 516 [§ 516.1 - § 516.2980] - PART 516—NEW ANIMAL DRUGS FOR MINOR USE AND MINOR SPECIES

• Part 520 [§ 520.23 - § 520.2654] - PART 520—ORAL DOSAGE FORM NEW ANIMAL DRUGS

• Part 522 [§ 522.23 - § 522.2690] - PART 522—IMPLANTATION OR INJECTABLE DOSAGE FORM NEW ANIMAL DRUGS

• Part 524 [§ 524.86 - § 524.2620] - PART 524—OPHTHALMIC AND TOPICAL DOSAGE FORM NEW ANIMAL DRUGS

• Part 526 [§ 526.88 - § 526.1810] - PART 526—INTRAMAMMARY DOSAGE FORM NEW ANIMAL DRUGS

• Part 528 [§ 528.1080 - § 528.2010] - PART 528—INTENTIONAL GENOMIC ALTERATIONS IN ANIMALS

• Part 529 [§ 529.56 - § 529.2620] - PART 529—CERTAIN OTHER DOSAGE FORM NEW ANIMAL DRUGS

• Part 530 [§ 530.1 - § 530.41] - PART 530—EXTRALABEL DRUG USE IN ANIMALS

• Part 556 [§ 556.1 - § 556.770] - PART 556—TOLERANCES FOR RESIDUES OF NEW ANIMAL DRUGS IN FOOD

• Part 558 [§ 558.3 - § 558.680] - PART 558—NEW ANIMAL DRUGS FOR USE IN ANIMAL FEEDS

• Part 564 - PART 564 [RESERVED]

• Part 570 [§ 570.3 - § 570.280] - PART 570—FOOD ADDITIVES

• Part 571 [§ 571.1 - § 571.130] - PART 571—FOOD ADDITIVE PETITIONS

• Part 573 [§ 573.120 - § 573.1020] - PART 573—FOOD ADDITIVES PERMITTED IN FEED AND DRINKING WATER OF ANIMALS

• Part 579 [§ 579.12 - § 579.40] - PART 579—IRRADIATION IN THE PRODUCTION, PROCESSING, AND HANDLING OF ANIMAL FEED AND PET FOOD

• Part 582 [§ 582.1 - § 582.7724] - PART 582—SUBSTANCES GENERALLY RECOGNIZED AS SAFE

• Part 584 [§ 584.200 - § 584.725] - PART 584—FOOD SUBSTANCES AFFIRMED AS GENERALLY RECOGNIZED AS SAFE IN FEED AND DRINKING WATER OF ANIMALS

• Part 589 [§ 589.1 - § 589.2001] - PART 589—SUBSTANCES PROHIBITED FROM USE IN ANIMAL FOOD OR FEED

• Part 590-599 - PARTS 590-599 [RESERVED]