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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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Title 40
Chapter I
Part 725
Subpart G - Subpart G—General Exemptions for New Microorganisms
§ 725.400 - Scope and purpose.
§ 725.420 - Recipient microorganisms.
§ 725.421 - Introduced genetic material.
§ 725.422 - Physical containment and control technologies.
§ 725.424 - Requirements for the Tier I exemption.
§ 725.426 - Applicability of the Tier I exemption.
§ 725.428 - Requirements for the Tier II exemption.
§ 725.450 - Procedural requirements for the Tier II exemption.
§ 725.455 - Information to be included in the Tier II exemption request.
§ 725.470 - EPA review of the Tier II exemption request.
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