Examples
Worked examples
- Is an instance
A neuroscience PI submits an IACUC protocol detailing the use of 120 mice for an optogenetics study, including surgical procedures, analgesia regimen, and humane endpoints, and may not order animals until the protocol is approved.
- Is an instance
An IACUC requires a researcher to consult the attending veterinarian and revise the post-surgical pain-management plan before granting approval.
Counter-examples
Looks similar, but isn't
- Not an instance
Research using only invertebrate species (excluding cephalopods in jurisdictions covering them) generally falls outside US IACUC jurisdiction.
- Not an instance
Use of commercially purchased tissue from previously euthanised animals where no live-animal work is performed by the institution does not require IACUC protocol approval.
Editorial commentary
The IACUC oversees the institution’s animal-care and use program through protocol review, semi-annual program reviews, semi-annual facility inspections, post-approval monitoring, investigation of concerns, and reporting to the Institutional Official. Membership must include a veterinarian with training in laboratory-animal medicine, a practicing scientist experienced with animal research, a non-scientist, and a non-affiliated member. The committee evaluates the scientific justification, the consideration of alternatives to painful procedures (the Three Rs: replacement, reduction, refinement), the species and number rationale, and humane endpoints.
Two overlapping legal bases, one committee
An IACUC’s authority rests on two distinct federal frameworks that apply to overlapping but not identical sets of research: the Animal Welfare Act and its regulations (enforced by USDA/APHIS, 9 CFR Parts 1-4, which exclude purpose-bred rats, mice, and birds and most other laboratory rodents from coverage), and the PHS Policy on Humane Care and Use of Laboratory Animals (administered by NIH’s Office of Laboratory Animal Welfare, OLAW, which applies to essentially all vertebrate species at institutions with a PHS Assurance, regardless of species exclusions under the AWA). Most research institutions hold both an AWA registration and an OLAW Assurance and apply Guide for the Care and Use of Laboratory Animals (8th edition) standards across all vertebrate work, so a single IACUC and protocol-review process typically covers all three, even though each carries its own statutory reach and reporting obligations.
Where to find the full operational detail
This entry defines what an IACUC is and does at a glance. For the complete comparison of the three regulatory frameworks, committee composition requirements in full, protocol-review pathways (full committee review vs. designated member review), USDA pain and distress categories, the practical steps of submitting and amending a protocol, semiannual facility inspection and program review mechanics, and suspension/noncompliance reporting to OLAW and USDA, see the dedicated guide: IACUC and Animal Research Oversight.
Frequently asked questions
Is IACUC review the same as IRB review?
No. The IRB reviews research involving human subjects; the IACUC reviews research involving live vertebrate animals. Some institutions use similar administrative infrastructure for both, but they are separate committees operating under separate regulatory frameworks. See IRB vs. IACUC for a full comparison.
Does every institution that uses animals need an IACUC?
Any institution conducting AWA-covered or PHS-funded vertebrate animal research must maintain an IACUC to remain compliant and eligible for federal funding; see the full guide for the compliance mechanics.
What roles work alongside the IACUC?
The attending veterinarian holds a specific statutory role in animal health and welfare oversight (9 CFR 2.33) and is typically a voting IACUC member; OLAW oversees institutional compliance with the PHS Policy; AAALAC International provides a separate, voluntary triennial accreditation layer on top of the regulatory minimum.
References
- US Animal Welfare Act and Animal Welfare Regulations, 9 CFR Parts 1-4.
- PHS Policy on Humane Care and Use of Laboratory Animals (NIH OLAW).
- Guide for the Care and Use of Laboratory Animals (National Research Council, 8th edition).
- AAALAC International Standards for Laboratory Animal Care.
Also known as
Institutional Animal Care and Use Committee · animal ethics committee
Machine-readable encodings
Use in your systems
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