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Regulations last checked for updates: Aug 21, 2025
Title 21 - Food and Drugs last revised: Aug 15, 2025
All Titles
Title 21
Chapter I
Part 509
Subpart B - Subpart B—Tolerances for Unavoidable Poisonous or Deleterious Substances
§ 509.30 - Temporary tolerances for polychlorinated biphenyls (PCB's).
authority:
21 U.S.C. 336
,
342
,
346
,
346
a,
348
,
371
source:
42 FR 52821, Sept. 30, 1977, unless otherwise noted.
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