U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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All TitlesTitle 21Chapter IPart 310Subpart A - Subpart A—General Provisions
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(a) If a drug has an approved license under section 351 of the Public Health Service Act (42 U.S.C. 262 et seq.) or under the animal virus, serum, and toxin law of March 4, 1913 (21 U.S.C. 151 et seq.), it is not required to have an approved application under section 505 of the act.
(b) To obtain marketing approval for radioactive biological products for human use, as defined in § 600.3(ee) of this chapter, manufacturers must comply with the provisions of § 601.2(a) of this chapter.
