---
kind: "unit"
title: "42"
title_heading: "Public Health"
key: "chI/subchF/part73"
level: "part"
label: "Part 73"
heading: "Select Agents and Toxins"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/42/chI-subchF-part73"
sections_count: 22
---

# Part 73 — Select Agents and Toxins

Title 42 C.F.R. — Public Health › Chapter I — Public Health Service, Department of Health and Human Services › Subchapter F — Quarantine, Inspection, Licensing

## Sections

- [§73.0. Applicability and related requirements.](/cfr/42/73.0.md)
- [§73.1. Definitions.](/cfr/42/73.1.md)
- [§73.2. Purpose and scope.](/cfr/42/73.2.md)
- [§73.3. HHS select agents and toxins.](/cfr/42/73.3.md)
- [§73.4. Overlap select agents and toxins.](/cfr/42/73.4.md)
- [§73.5. Exemptions for HHS select agents and toxins.](/cfr/42/73.5.md)
- [§73.6. Exemptions for overlap select agents and toxins.](/cfr/42/73.6.md)
- [§73.7. Registration and related security risk assessments.](/cfr/42/73.7.md)
- [§73.8. Denial, revocation, or suspension of registration.](/cfr/42/73.8.md)
- [§73.9. Responsible Official.](/cfr/42/73.9.md)
- [§73.10. Restricting access to select agents and toxins; security risk assessments.](/cfr/42/73.10.md)
- [§73.11. Security.](/cfr/42/73.11.md)
- [§73.12. Biosafety.](/cfr/42/73.12.md)
- [§73.13. Restricted experiments.](/cfr/42/73.13.md)
- [§73.14. Incident response.](/cfr/42/73.14.md)
- [§73.15. Training.](/cfr/42/73.15.md)
- [§73.16. Transfers.](/cfr/42/73.16.md)
- [§73.17. Records.](/cfr/42/73.17.md)
- [§73.18. Inspections.](/cfr/42/73.18.md)
- [§73.19. Notification of theft, loss, or release.](/cfr/42/73.19.md)
- [§73.20. Administrative review.](/cfr/42/73.20.md)
- [§73.21. Civil money penalties.](/cfr/42/73.21.md)