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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 10
Chapter I
Part 35
Subpart D - Subpart D—Unsealed Byproduct Material—Written Directive Not Required
§ 35.100 - Use of unsealed byproduct material for uptake, dilution, and excretion studies for which a written directive is not required.
§ 35.190 - Training for uptake, dilution, and excretion studies.
§ 35.200 - Use of unsealed byproduct material for imaging and localization studies for which a written directive is not required.
§ 35.204 - Permissible molybdenum-99, strontium-82, and strontium-85 concentrations.
§ 35.290 - Training for imaging and localization studies.
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