Marine Mammal Protection Act: Research Permits

The Marine Mammal Protection Act (MMPA) prohibits taking and importing marine mammals while providing formal permitting mechanisms for scientific research and enhancement. Enacted on October 21, 1972 (16 U.S.C. 1361 et seq.), the statute requires investigators in marine biology to prove their fieldwork will not disadvantage wild stocks before conducting sampling, tagging, acoustic monitoring, or drone surveys.

What it is and who runs it

The Marine Mammal Protection Act protects all marine mammal species in U.S. waters and bars citizens from taking marine mammals on the high seas. Section 104 (16 U.S.C. 1374) provides statutory exceptions authorizing bona fide research. As described on official program pages on November 7, 2026, oversight is divided across federal bodies:

NOAA Fisheries (NMFS): Oversees cetaceans (whales, dolphins, porpoises) and pinnipeds except walruses (seals, sea lions). Its Permits and Conservation Division issues research permits and incidental take authorizations.
U.S. Fish and Wildlife Service (USFWS): Oversees walruses, polar bears, sea otters, manatees, and dugongs under the Department of the Interior.
Marine Mammal Commission (MMC): An independent agency established under MMPA Title II providing science-based oversight and reviewing all research permit applications submitted to NMFS and USFWS.
USDA APHIS: Enforces the Animal Welfare Act standards governing care and housing for captive research marine mammals.

Eligibility

Research permits under MMPA Section 104(c) are restricted to bona fide scientific investigators (50 CFR Part 216). As described on official program pages on November 7, 2026, eligible entities include:

Principal Investigators (PIs): Scientists demonstrating documented training and competency matching requested field techniques (such as biopsy sampling or tagging).
Co-Investigators (CIs): Qualified personnel named on the permit to perform direct takes under the PI’s supervision, each verified through an official Qualifications Form (QF).
Research Institutions: Universities and research centers holding institutional sponsorship and an approved IACUC protocol.

What it funds or requires

The MMPA does not award grant funds; it provides legal authorization for takes that are otherwise prohibited by federal statute. Under 16 U.S.C. 1362(13), “take” means to harass, hunt, capture, or kill any marine mammal. Field protocols fall into distinct authorization classes:

Level A Harassment: Any act with potential to injure a marine mammal in the wild (16 U.S.C. 1362(18)(A)(i)). Biopsy darting, capture, and surgical tag implantation require a full Scientific Research Permit.
Level B Harassment: Any act with potential to disturb a marine mammal by disrupting behavioral patterns like migration, nursing, or feeding (16 U.S.C. 1362(18)(A)(ii)). Photo-identification, behavioral follows, passive acoustics, and drone surveys fall under Level B.
Scientific Research and Enhancement Permits: Required for Level A takes, invasive sampling, capture, or any activities targeting Endangered Species Act (ESA) listed species.
General Authorization (Letter of Confirmation / LOC): A streamlined pathway under Section 104(c)(3) for non-ESA listed species involving only Level B harassment. Excludes pinniped rookeries and tissue exports.
Incidental Take Authorizations: Governed by Section 101(a)(5) for oceanographic surveys where takes are unintentional, issued as one-year Incidental Harassment Authorizations (IHAs) or five-year Letters of Authorization (LOAs).
Parts Permits: Required to collect, import, export, or curate marine mammal tissues, blood, or cell lines.

Application or compliance steps

Investigators submit and manage MMPA applications through NOAA Fisheries’ Authorizations and Permits for Protected Species (APPS) portal, as described on official program pages on November 7, 2026:

Run the Pre-Application Guide: Use the APPS (apps.nmfs.noaa.gov) questionnaire to identify the required authorization route.
Obtain Institutional IACUC Approval: Align field sampling, anesthesia, and sample sizes with IACUC oversight standards.
Compile Qualifications Forms: Document supervised field hours and procedural competency for the PI and each Co-Investigator.
Build the Take Table: Detail requested species, stocks, life stages, coordinates, and annual take numbers for Level A and Level B activities.
Submit Electronic Application: Upload the dossier in APPS or email the Permits and Conservation Division ([email protected]).
Address Review Queries: Respond to completeness questions from the assigned permit analyst within 60 days.
Public Comment & MMC Review: Complete applications are published in the Federal Register for a mandatory 30-day public comment period and reviewed by the Marine Mammal Commission.
Sign Acceptance & Notify Region: Sign the permit and send written notice to the NOAA Fisheries Regional Office at least 2 weeks before fieldwork begins.
Submit Annual Reports: Document actual takes and samples collected annually in APPS to maintain animal research ethics compliance.

Typical timeline phases

Permit lead times reflect statutory review and inter-agency consultations rather than fixed calendar dates. As described on official program pages on November 7, 2026, researchers should plan around these phases:

General Authorization LOCs (4 to 6 Months): Submit Letters of Intent 4 to 6 months prior to fieldwork; no Federal Register notice is mandated for qualifying non-ESA Level B activities.
Standard Research Permits for Non-Listed Species (6 Months): Requires 6 months lead time for completeness screening, public comment, and MMC review.
ESA-Listed Species (10 to 12 Months): Research on endangered or threatened species requires 12 months advance planning for ESA Section 7 consultation and NEPA reviews.
Programmatic Cetacean Cycles: For activities under the cetacean programmatic consultation, NOAA Fisheries operates annual application cycles with deadlines on May 1 and November 1.
Incidental Harassment Authorizations (5 to 8 Months): Apply 5 to 8 months in advance for survey cruises; expedited 60-day renewals exist for identical low-impact projects.
Five-Year Rulemakings / LOAs (9 to 15 Months): Multi-year cruises with potential Level A takes require 9 to 15 months for federal rulemaking.

Common mistakes

Investigators routinely encounter delays or compliance notices from several preventable oversights:

Omitting Non-Target Species: Failing to include co-occurring marine mammals in the Take Table that will be disturbed during vessel or aerial operations.
Insufficient Lead Times: Applying 2 to 3 months before cruises; statutory public notice and environmental consultations cannot be waived.
IACUC Discrepancies: Listing animal numbers or sampling tools in APPS that diverge from institutional IACUC approvals.
Incomplete Qualifications Forms: Designating personnel for biopsy darting or capture without documented prior experience under an authorized permit.
Skipping Regional Notification: Deploying field crews without notifying the NOAA Fisheries Regional Office two weeks in advance.
Unauthorized Drone Surveys: Flying drones over marine mammals without a permit; aerial operations produce disturbance classified as Level B harassment.
Unanticipated Scope Expansions: Adding study sites or target species mid-season without recognizing that major permit amendments require 6 to 12 months.

Related programs

MMPA compliance intersects with several federal statutes and wildlife conventions. The table below outlines how related regulatory frameworks intersect with marine mammal research:

Program / Regulation	Governing Agency	Primary Regulatory Scope	Relationship to MMPA Research Permits
Marine Mammal Protection Act (Section 104)	NOAA Fisheries / USFWS	Moratorium on takes/imports; scientific exemptions	Primary legal permit required for directed marine mammal research takes in U.S. waters
Endangered Species Act (Section 10)	NOAA Fisheries / USFWS	Prohibits taking of listed threatened/endangered wildlife	Jointly permitted in APPS via Section 7 consultation for listed marine mammals
Animal Welfare Act	USDA APHIS	Humane care and housing for warm-blooded animals	Regulates captive marine mammals; institutional IACUC approval required for all research
National Marine Sanctuaries Act	NOAA Sanctuaries	Protects national marine sanctuary habitats	Requires a separate Sanctuary Permit if research occurs inside sanctuary waters
Magnuson-Stevens Act	NOAA Fisheries	Sustainable fisheries and essential habitat conservation	Governs research vessels conducting joint oceanographic and fisheries science surveys
CITES (Appendix I & II)	USFWS	Regulates international trade in endangered species	Requires separate CITES permits to export or import marine mammal tissues abroad

FAQ

Who needs an MMPA scientific research permit?

Any investigator, university faculty member, agency biologist, or private researcher planning field activities that could harass, capture, sample, or disturb marine mammals in U.S. waters—or U.S. citizens working on the high seas—must obtain an active MMPA permit or authorization prior to fieldwork.

What is the difference between Level A and Level B harassment?

Under 16 U.S.C. 1362(18), Level A harassment includes research activities with potential to physically injure a marine mammal (such as biopsy sampling or surgical tagging). Level B harassment encompasses actions with potential to disturb natural behaviors like feeding, nursing, or migrating without injury (such as vessel photo-identification or drone surveys).

How far in advance must researchers apply for an MMPA permit?

Apply at least 6 months in advance for standard research permits on non-listed species, 10 to 12 months for ESA-listed species, and 4 to 6 months for Letters of Confirmation under the General Authorization.

Can researchers fly drones over marine mammals under the General Authorization?

Yes. Small unmanned aircraft systems (UAS) conducting non-invasive photo-identification or behavioral follows that do not exceed Level B harassment can be authorized under a Letter of Confirmation, provided target species are not ESA-listed and flights avoid pinniped rookeries.

What happens if an unpermitted take occurs during fieldwork?

Field operations must halt immediately. Researchers must follow emergency permit protocols and notify the NOAA Fisheries Permits and Conservation Division and Regional Stranding Network within 24 to 48 hours to avoid enforcement actions and permit revocation.

Sources

NOAA Fisheries: Scientific Research and Enhancement Permits for Marine Mammals. Silver Spring, MD. Official program guidance retrieved November 7, 2026. https://www.fisheries.noaa.gov/permit/scientific-research-and-enhancement-permits-marine-mammals
NOAA Fisheries: Letter of Confirmation Under the General Authorization. Silver Spring, MD. Official program guidance retrieved November 7, 2026. https://www.fisheries.noaa.gov/permit/letter-confirmation-under-general-authorization
NOAA Fisheries: Incidental Take Authorizations Under the Marine Mammal Protection Act. Silver Spring, MD. Official program guidance retrieved November 7, 2026. https://www.fisheries.noaa.gov/permit/incidental-take-authorizations-under-marine-mammal-protection-act
Legal Information Institute (LII), Cornell Law School: 16 U.S. Code § 1374 – Permits (Marine Mammal Protection Act of 1972, Public Law 92-522, as amended). Retrieved November 7, 2026. https://www.law.cornell.edu/uscode/text/16/1374
Marine Mammal Commission: Our Mission and Statutory Duties under Title II of the Marine Mammal Protection Act. Bethesda, MD. Official agency charter retrieved November 7, 2026. https://www.mmc.gov/about-the-commission/our-mission/