9 CFR Subject Group
Ingredient Requirements
August 7, 2025
§
113.50
Ingredients of biological products
§
113.51
Requirements for primary cells used for production of biologics
§
113.52
Requirements for cell lines used for production of biologics
§
113.53
Requirements for ingredients of animal origin used for production of biologics
§
113.54
Sterile diluent
§
113.55
Detection of extraneous agents in Master Seed Virus
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