Code of Federal Regulations > Title 20 > Chapter III > Part 431 - PART 431—PROTECTION OF HUMAN SUBJECTS

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Feb 10, 2026

§ 431.101 - To what does this policy apply?

§ 431.102 - Definitions for purposes of this policy.

§ 431.103 - Assuring compliance with this policy—research conducted or supported by any Federal department or agency.

§ 431.104 - Exempt research.

§§ 431.105-431.106 - §[Reserved]

§ 431.107 - IRB membership.

§ 431.108 - IRB functions and operations.

§ 431.109 - IRB review of research.

§ 431.110 - Expedited review procedures for certain kinds of research involving no more than minimal risk, and for minor changes in approved research.

§ 431.111 - Criteria for IRB approval of research.

§ 431.112 - Review by Institution

§ 431.113 - Suspension or Termination of IRB Approval of Research.

§ 431.114 - Cooperative Research.

§ 431.115 - IRB Records.

§ 431.116 - General Requirements for Informed Consent.

§ 431.117 - Documentation of informed consent.

§ 431.118 - Applications and proposals lacking definite plans for involvement of human subjects.

§ 431.119 - Research undertaken without the intention of involving human subjects.

§ 431.120 - Evaluation and disposition of applications and proposals for research to be conducted or supported by a Federal department or agency.

§ 431.121 - [Reserved]

§ 431.122 - Use of Federal funds.

§ 431.123 - Early termination of research support: Evaluation of applications and proposals.

§ 431.124 - Conditions.