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title 21
Food and Drugs
chapter I-i5
CHAPTER I—FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED)
part 509
PART 509—UNAVOIDABLE CONTAMINANTS IN ANIMAL FOOD AND FOOD-PACKAGING MATERIAL
subpart B
Subpart B—Tolerances for Unavoidable Poisonous or Deleterious Substances
Subpart B. Subpart B—Tolerances for Unavoidable Poisonous or Deleterious Substances
§ 509.30 - Temporary tolerances for polychlorinated biphenyls (PCB's).
