Regulations last checked for updates: Jul 22, 2025

Title 50 - Wildlife and Fisheries last revised: Jul 18, 2025
§ 217.100 - Specified activity and specified geographical region.

(a) Regulations in this subpart apply only to the University of California Santa Cruz's Multi-Agency Rocky Intertidal Network (UCSC/MARINe) and those persons it authorizes or funds to conduct activities on its behalf for the taking of marine mammals that occur in the areas outlined in paragraph (b) of this section and that occur incidental to rocky intertidal monitoring research surveys.

(b) The taking of marine mammals by UCSC/MARINe may be authorized in a Letter of Authorization (LOA) only if it occurs on the coasts of Oregon or California.

§ 217.101 - Effective dates.

Regulations in this subpart are effective from June 26, 2025, through June 26, 2030.

§ 217.102 - Permissible methods of taking.

Under LOAs issued pursuant to §§ 216.106 of this chapter and 217.106, the Holder of the LOA (hereinafter “UCSC/MARINe”) may incidentally, but not intentionally, take marine mammals within the area described in § 217.100 (b) by Level B harassment associated with rocky intertidal monitoring activities, provided the activity is in compliance with all terms, conditions, and requirements of the regulations in this subpart and the appropriate LOA.

§ 217.103 - Prohibitions.

Notwithstanding takings contemplated in § 217.100 and authorized by an LOA issued under §§ 216.106 of this chapter and 217.106, no person in connection with the activities described in § 217.100 may:

(a) Violate, or fail to comply with, the terms, conditions, and requirements of this subpart or a LOA issued under §§ 216.106 of this chapter and 217.106;

(b) Take any marine mammal not specified in such LOA;

(c) Take any marine mammal specified in such LOA in any manner other than as specified in § 217.102;

(d) Take a marine mammal specified in such LOA if NMFS determines such taking results in more than a negligible impact on the species or stocks of such marine mammal; or

(e) Take a marine mammal specified in such LOA if NMFS determines such taking results in an unmitigable adverse impact on the species or stock of such marine mammal for taking for subsistence uses.

§ 217.104 - Mitigation requirements.

When conducting the activities identified in § 217.100(a), the mitigation measures contained in any LOA issued under §§ 216.106 of this chapter and 217.106 must be implemented. These mitigation measures shall include but are not limited to:

(a) General conditions. (1) Researchers must observe a site from a distance for at least five minutes, using binoculars if necessary, to detect any marine mammals prior to approach to determine if mitigation is required. Site surveys will not be conducted if other species of pinnipeds are present. Researchers will approach with caution, walking slowly, quietly, and close to the ground to avoid surprising any hauled out individuals and to reduce flushing (i.e., disturbing from its position).

(2) Researchers shall avoid pinnipeds along access ways to sites by locating and taking a different access way. Researchers shall keep a safe distance from and not approach any marine mammal while conducting research, unless it is absolutely necessary to approach a marine mammal in order to continue conducting research (i.e., if a site cannot be accessed or sampled due to the presence of pinnipeds).

(3) Researchers shall avoid making loud noises (e.g., using hushed voices) and keep bodies low to the ground in the visual presence of pinnipeds.

(4) Researchers shall monitor the offshore area for predators (e.g., killer whales and great white sharks) and avoid flushing of pinnipeds when predators are observed in nearshore waters.

(5) Researchers shall promptly vacate sites at the conclusion of sampling.

(6) Researchers shall not operate unmanned aerial vehicles (UAVs) at an altitude below 10 meters while in the presence of pinnipeds.

(7) Research occurring on the Channel Islands, Farallon Islands, or Año Nuevo Island will be coordinated with researchers who regularly work in these areas.

(b) Pup protection measures. (1) Intentional approach will not occur if dependent pups are present to avoid mother/pup separation and trampling of pups. Staff shall reschedule work at sites where pups are present, unless other means of accomplishing the work can be done without causing disturbance to mothers and dependent pups.

(2) [Reserved]

§ 217.105 - Requirements for monitoring and reporting.

(a) Visual monitoring program. (1) Standard information recorded will include species counts (with numbers of pups/juveniles when possible) of animals present before approaching, numbers of observed disturbances, and descriptions of the disturbance behaviors during the monitoring surveys, including location, date, and time of the event.

(2) UCSC/MARINe must note observations of:

(i) Unusual behaviors, numbers, or distributions of pinnipeds, such that any potential follow-up research can be conducted by the appropriate personnel;

(ii) Tag-bearing carcasses of pinnipeds, allowing transmittal of the information to appropriate agencies and personnel; and

(iii) Rare or unusual species of marine mammals for agency follow-up.

(3) For consistency, any reactions by pinnipeds to researchers must be recorded according to a three-point pinniped disturbance scale included in any LOA issued under § 216.106 of this chapter and § 217.106.

(4) UCSC/MARINe must note information regarding the date and time that research is conducted, as well as the physical and biological conditions pertaining to a site.

(b) Prohibited take. (1) If at any time the specified activity clearly causes the take of a marine mammal in a manner prohibited by these regulations or LOA, such as an injury (Level A harassment), serious injury, or mortality, UCSC/MARINe shall immediately cease the specified activities and report the incident to the Office of Protected Resources, NMFS, and the West Coast Regional Stranding Coordinator, NMFS. The report must include the following information:

(i) Time and date of the incident;

(ii) Description of the incident;

(iii) Environmental conditions (e.g., wind speed and direction, Beaufort sea state, cloud cover, and visibility);

(iv) Description of all marine mammal observations in the 24 hours preceding the incident;

(v) Species identification or description of the animal(s) involved;

(vi) Fate of the animal(s); and

(vii) Photographs or video footage of the animal(s) (if equipment is available).

(2) Activities shall not resume until NMFS is able to review the circumstances of the prohibited take. NMFS will work with UCSC/MARINe to determine what measures are necessary to minimize the likelihood of further prohibited take and ensure Marine Mammal Protection Act (MMPA) compliance. UCSC/MARINe must not resume the activities until notified by NMFS via letter, email, or telephone.

(c) Notification of dead or injured marine mammals. (1) In the event that UCSC/MARINe discovers an injured or dead marine mammal and determines that the cause of the injury or death is unknown and the death is relatively recent (e.g., in less than a moderate state of decomposition), UCSC/MARINe shall immediately report the incident to the Office of Protected Resources, NMFS, and the West Coast Regional Stranding Coordinator, NMFS. The report must include the information identified in paragraph (b)(1) of this section. Activities may continue while NMFS reviews the circumstances of the incident. NMFS will work with UCSC/MARINe to determine whether additional mitigation measures or modifications to the activities are appropriate; and

(2) In the event that an injured or dead marine mammal is discovered and it is determined that the injury or death is not associated with or related to the activities authorized in the regulations and LOA (e.g., previously wounded animal, carcass with moderate to advanced decomposition, or scavenger damage), UCSC/MARINe shall report the incident to the Office of Protected Resources, NMFS, and the West Coast Regional Stranding Coordinator, NMFS, within 24 hours of the discovery. UCSC/MARINe shall provide photographs, video footage (if available) or other documentation of the stranded animal sighting to NMFS and the Marine Mammal Stranding Network. Activities may continue while NMFS reviews the circumstances of the incident.

(d) Annual report. (1) A draft annual report shall be submitted to NMFS Office of Protected Resources within 90 days after the conclusion of each annual field season. The final annual report after year five may be included as part of the final report (see paragraph (e) of this section). The report will include a summary of the information gathered pursuant to the monitoring requirements set forth in this section and in the LOA; and

(2) A final annual report shall be submitted to the Director of the NMFS Office of Protected Resources within 30 days after receiving comments from NMFS on the draft annual report. If no comments are received from NMFS, the draft annual report will be considered the final report.

§ 217.106 - Letters of Authorization.

(a) To incidentally take marine mammals pursuant to these regulations, UCSC/MARINe must apply for and obtain an LOA.

(b) An LOA, unless suspended or revoked, may be effective for a period of time not to exceed the expiration date of these regulations.

(c) If an LOA expires prior to the expiration date of these regulations, UCSC/MARINe may apply for and obtain a renewal of the LOA.

(d) In the event of projected changes to the activity or to mitigation and monitoring measures required by an LOA, UCSC/MARINe must apply for and obtain a modification of the LOA as described in § 217.107.

(e) The LOA shall set forth:

(1) Permissible methods and numbers of incidental taking;

(2) Means of effecting the least practicable adverse impact (i.e., mitigation) on the species, its habitat, and on the availability of the species for subsistence uses; and

(3) Requirements for monitoring and reporting.

(f) Issuance of the LOA shall be based on a determination that the level of taking will be consistent with the findings made for the total taking allowable under these regulations.

(g) Notice of issuance or denial of an LOA shall be published in the Federal Register within 30 days of a determination.

§ 217.107 - Renewals and modifications of Letters of Authorization.

(a) An LOA issued under §§ 216.106 of this chapter and 217.106 for the activity identified in § 217.100(a) shall be renewed or modified upon request by the applicant, provided that:

(1) The proposed specified activity and mitigation, monitoring, and reporting measures, as well as the anticipated impacts, are the same as those described and analyzed for these regulations (excluding changes made pursuant to the adaptive management provision in paragraph (c)(1) of this section); and

(2) NMFS' Office of Protected Resources determines that the mitigation, monitoring, and reporting measures required by the previous LOA under these regulations were implemented.

(b) For an LOA modification or renewal requests by the applicant that include changes to the activity or the mitigation, monitoring, or reporting (excluding changes made pursuant to the adaptive management provision in paragraph (c)(1) of this section) that do not change the findings made for the regulations or result in no more than a minor change in the total estimated number of takes (or distribution by species or years), NMFS' Office of Protected Resources may publish a notice of proposed LOA in the Federal Register, including the associated analysis of the change, and solicit public comment before issuing the LOA.

(c) An LOA issued under §§ 216.106 of this chapter and 217.106 for the activity identified in § 217.100(a) may be modified by NMFS' Office of Protected Resources under the following circumstances:

(1) Adaptive Management. NMFS' Office of Protected Resources may modify (including augment) the existing mitigation, monitoring, or reporting measures (after consulting with UCSC/MARINe regarding the practicability of the modifications) if doing so creates a reasonable likelihood of more effectively accomplishing the goals of the mitigation and monitoring set forth in this subpart.

(i) Possible sources of data that could contribute to the decision to modify the mitigation, monitoring, or reporting measures in an LOA:

(A) Results from UCSC/MARINe's monitoring from the previous year(s);

(B) Results from other marine mammal and/or sound research or studies; and

(C) Any information that reveals marine mammals may have been taken in a manner, extent or number not authorized by this subpart or subsequent LOAs; and

(ii) If, through adaptive management, the modifications to the mitigation, monitoring, or reporting measures are substantial, NMFS' Office of Protected Resources will publish a notice of proposed LOA in the Federal Register and solicit public comment; and

(2) Emergencies. If NMFS' Office of Protected Resources determines that an emergency exists that poses a significant risk to the well-being of the species or stocks of marine mammals specified in LOAs issued pursuant to §§ 216.106 of this chapter and 217.106, an LOA may be modified without prior notice or opportunity for public comment. Notice will publish in the Federal Register within 30 days of the action.

§§ 217.108-217.109 - §[Reserved]
authority: 16 U.S.C. 1361
source: 74 FR 35143, July 20, 2009, unless otherwise noted.
cite as: 50 CFR 217.104