(a) Regulations in this subpart apply only to the National Marine Fisheries Service's (NMFS) Pacific Islands Fisheries Science Center (PIFSC) and those persons it authorizes or funds to conduct activities on its behalf for the taking of marine mammals that occurs in the areas outlined in paragraph (b) of this section and that occurs incidental to research survey program operations.

(b) The taking of marine mammals by PIFSC may be authorized in a Letter of Authorization (LOA) only if it occurs during fishery research within the Hawaiian Archipelago, Mariana Archipelago, American Samoa Archipelago, and Western and Central Pacific Ocean.

Regulations in this subpart are effective from May 16, 2025 through May 15, 2030.

Under LOAs issued pursuant to §§ 216.106 of this chapter and 219.67, the Holder of the LOA (hereinafter “PIFSC”) may incidentally, but not intentionally, take marine mammals within the area described in § 219.61(b) in the following ways, provided PIFSC is in compliance with all terms, conditions, and requirements of the regulations in this subpart and the appropriate LOA.

(a) By Level B harassment associated with physical or visual disturbance of hauled out pinnipeds.

(b) By Level B harassment associated with use of active acoustic systems.

(c) By Level A harassment, serious injury, or mortality provided the take is associated with the use of longline gear, trawl gear, or deployed instruments and traps.

Except for the takings described in §§ 219.61 and authorized by a LOA issued under 216.106 of this chapter and this subpart, it shall be unlawful for any person to do any of the following in connection with the activities described in § 219.61:

(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 this subpart;

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

(c) Take any marine mammal in any manner other than as specified in the LOA;

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

When conducting the activities identified in § 219.61(a), the mitigation measures contained in any LOA issued under §§ 216.106 of this chapter and 219.67 must be implemented. These mitigation measures shall include but are not limited to:

(a) General conditions. (1) PIFSC shall take all necessary measures to coordinate and communicate in advance of each specific survey with the National Oceanic and Atmospheric Administration's (NOAA) Office of Marine and Aviation Operations (OMAO) or other relevant parties on non-NOAA platforms to ensure that all mitigation measures and monitoring requirements described herein, as well as the specific manner of implementation and relevant event-contingent decision-making processes, are clearly understood and agreed upon. Although these regulations do not always explicitly reference those with decision making authority from cooperative platforms, all mitigation measures apply with equal force to non-NOAA vessels and personnel as they do to NOAA vessels and personnel.

(2) PIFSC shall coordinate and conduct briefings at the outset of each survey and as necessary between the ship's crew (Commanding Officer or designee(s), as appropriate) and scientific party in order to explain responsibilities, communication procedures, marine mammal monitoring protocol, and operational procedures.

(3) PIFSC shall coordinate as necessary on a daily basis during survey cruises with OMAO personnel or other relevant personnel on non-NOAA platforms to ensure that requirements, procedures, and decision-making processes are understood and properly implemented.

(4) PIFSC shall conduct monitoring for marine mammals when deploying any type of sampling gear at sea and take action to prevent and minimize any take of marine mammals by deployed sampling gear.

(5) PIFSC shall implement handling and/or disentanglement protocols as specified in the guidance that shall be provided to PIFSC survey personnel.

(b) Vessel strike avoidance. (1) PIFSC must maintain a 100-meter (m) separation distance between research vessels and large whales (i.e., baleen whales and sperm whales) at all times. At any time during a survey or transit, if a crew member or designated marine mammal observer standing watch sights marine mammals that may intersect with the vessel course that individual must immediately communicate the presence of marine mammals to the bridge, and the vessel must take any necessary action to avoid incidental collisions.

(2) PIFSC must reduce vessel speed to 10 knots (kt) or less when piloting vessels within 1 kilometer (km; as visibility permits) of marine mammals.

(c) Trawl survey protocols. (1) PIFSC shall conduct trawl operations as soon as is practicable upon arrival at the sampling station.

(2) PIFSC shall initiate marine mammal watches (visual observation) at least 30 minutes prior to beginning of net deployment, but shall also conduct monitoring during any pre-set activities including trackline reconnaissance, conductivity, temperature, and depth (CTD) casts, and plankton or bongo net hauls. Marine mammal watches shall be conducted by scanning the surrounding waters with the naked eye and rangefinding binoculars (or monocular). During nighttime operations, visual observation shall be conducted using the naked eye and available vessel lighting.

(3) PIFSC shall implement the move-on rule mitigation protocol, as described in this paragraph. If one or more marine mammals are observed within 500 m of the sampling station in the 10 minutes before setting the trawl gear, and are considered at risk of interacting with the vessel or research gear, or appear to be approaching the vessel and are considered at risk of interaction, the PIFSC shall either remain onsite or move on to another sampling location. If remaining onsite, the set shall be delayed. If the animals depart or appear to no longer be at risk of interacting with the vessel or gear, a further 10 minute observation period shall be conducted. If no further observations are made or the animals still do not appear to be at risk of interaction, then the set may be made. If the vessel is moved to a different section of the sampling area, the move-on rule mitigation protocol would begin anew. If, after moving on, marine mammals remain at risk of interaction, the PIFSC shall move again or skip the station. Marine mammals that are sighted further than 500 m from the vessel shall be monitored to determine their position and movement in relation to the vessel to determine whether the move-on rule mitigation protocol should be implemented. PIFSC may use best professional judgment in making these decisions.

(4) PIFSC shall maintain visual monitoring effort during the entire period of time that trawl gear is in the water (i.e., throughout gear deployment, fishing, and retrieval). If marine mammals are sighted before the gear is fully removed from the water, PIFSC shall take the most appropriate action to avoid marine mammal interaction. PIFSC may use best professional judgment in making this decision. PIFSC must retrieve gear immediately if there is any indication marine mammals are captured or entangled in a net or associated gear (e.g., lazy line) and follow disentanglement protocols approved by the NMFS Office of Protected Resources (OPR).

(5) If trawling operations have been suspended because of the presence of marine mammals, PIFSC may resume trawl operations when practicable only when the animals are believed to have departed the area. PIFSC may use best professional judgment in making this determination.

(6) PIFSC shall implement standard survey protocols to minimize potential for marine mammal interactions, including maximum tow durations at target depth and maximum tow distance, and shall carefully empty the trawl as quickly as possible upon retrieval.

(7) Dead fish and bait shall not be discarded from the vessel while actively fishing. Dead fish and bait shall be discarded after gear is retrieved and immediately before the vessel leaves the sampling location for a new area.

(d) Longline survey protocols. (1) PIFSC shall deploy longline gear as soon as is practicable upon arrival at the sampling station.

(2) PIFSC shall initiate marine mammal watches (visual observation) no less than 30 minutes (or for the duration of transit between set locations, if shorter than 30 minutes) prior to both deployment and retrieval of longline gear. Marine mammal watches shall be conducted by scanning the surrounding waters with the naked eye and rangefinding binoculars (or monocular). During nighttime operations, visual observation shall be conducted using the naked eye and available vessel lighting.

(3) PIFSC shall implement the move-on rule mitigation protocol, as described in this paragraph. If one or more marine mammals are observed in the vicinity of the planned location before gear deployment, and are considered at risk of interacting with the vessel or research gear, or appear to be approaching the vessel and are considered at risk of interaction, PIFSC shall either remain onsite or move on to another sampling location. If remaining onsite, the set shall be delayed. If the animals depart or appear to no longer be at risk of interacting with the vessel or gear, a further observation period shall be conducted. If no further observations are made or the animals still do not appear to be at risk of interaction, then the set may be made. If the vessel is moved to a different section of the sampling area, the move-on rule mitigation protocol would begin anew. If, after moving on, marine mammals remain at risk of interaction, the PIFSC shall move again or skip the station. Marine mammals that are sighted shall be monitored to determine their position and movement in relation to the vessel to determine whether the move-on rule mitigation protocol should be implemented. PIFSC may use best professional judgment in making these decisions. PIFSC must retrieve gear immediately if marine mammals are believed to be captured/entangled in a net, line, or associated gear and follow disentanglement protocols approved by the NMFS OPR.

(4) PIFSC shall maintain visual monitoring effort during the entire period of gear deployment and retrieval. If marine mammals are sighted before the gear is fully deployed or retrieved, PIFSC shall take the most appropriate action to avoid marine mammal interaction. PIFSC may use best professional judgment in making this decision.

(5) If deployment or retrieval operations have been suspended because of the presence of marine mammals, PIFSC may resume such operations when practicable only when the animals are believed to have departed the area. PIFSC may use best professional judgment in making this decision.

(6) When conducting longline research in Hawai'i, American Samoa, Guam, the Commonwealth of the Northern Marianas, or exclusive economic zone (EEZs) of the Pacific Insular Areas, PIFSC shall adhere to the requirements on commercial longline gear as specified in 50 CFR parts 229, 300, 404, 600, and 665, and shall adhere to the following procedures when setting and retrieving longline gear:

(i) When shallow-setting anywhere and setting longline gear from the stern, completely thawed and blue-dyed bait shall be used (two 1-pound containers of blue-dye shall be kept on the boat for backup). Fish parts and spent bait with all hooks removed shall be kept for strategic offal discard. Retained swordfish shall be cut in half at the head; used heads and livers shall also be used for strategic offal discard. Setting shall only occur at night and begin 1 hour after local sunset and finish 1 hour before next sunrise, with lighting kept to a minimum.

(ii) When deep-setting north of 23° N and setting longline gear from the stern, 45 gram (g) or heavier weights shall be attached within 1 m of each hook. A line shooter shall be used to set the mainline. Completely thawed and blue-dyed bait shall be used (two 1-pound containers of blue-dye shall be kept on the boat for backup). Fish parts and spent bait with all hooks removed shall be kept for strategic offal discard. Retained swordfish shall be cut in half at the head; used heads and livers shall also be used for strategic offal discard.

(iii) When shallow-setting anywhere and setting longline gear from the side, mainline shall be deployed from the port or starboard side at least 1 m forward of the stern corner. If a line shooter is used, it shall be mounted at least 1 m forward from the stern corner. A bird curtain shall be used aft of the setting station during the set. Gear shall be deployed so that hooks do not resurface. Forty-five g or heavier weights shall be attached within 1 m of each hook.

(iv) When deep-setting north of 23° N and setting longline gear from the side, mainline shall be deployed from the port or starboard side at least 1 m forward of the stern corner. If a line shooter is used, it shall be mounted at least 1 m forward from the stern corner. A specified bird curtain shall be used aft of the setting station during the set. Gear shall be deployed so that hooks do not resurface. Forty-five g or heavier weights shall be attached within 1 m of each hook.

(7) Dead fish and bait shall not be discarded from the vessel while actively fishing. Dead fish and bait shall be discarded after gear is retrieved and immediately before the vessel leaves the sampling location for a new area.

(e) Small boat and diver protocols. (1) Surveys and in-water operations shall be conducted with at least two divers observing for the proximity of marine mammals, a coxswain driving the small boat, and a topside spotter. Spotters and coxswains shall look out for divers, marine mammals, and environmental hazards. Topside spotters may also work as coxswains, depending on team assignment and boat layout.

(2) Before approaching any shoreline or exposed reef, all observers shall examine any visible land areas for the presence of marine mammals. Scientists, divers, and coxswains shall follow best management practices (BMPs) for boat operations and diving activities, including:

(i) Maintain constant vigilance for the presence of marine mammals.

(ii) Marine mammals shall not be encircled or trapped between multiple vessels or between vessels and the shore.

(iii) If approached by a marine mammal, the engine shall be put in neutral and the animal allowed to pass.

(iv) All in-water work not already underway shall be postponed until whales are beyond 100 yards or other marine mammals are beyond 50 yards from the vessel or diver, unless the work is covered under a separate permit that allows activity in proximity to marine mammals. Activity shall commence only after the animal(s) depart the area.

(v) If marine mammals enter the area while in-water work is already in progress, the activity may continue only when that activity has no reasonable expectation to adversely affect the animal(s). PIFSC may use best professional judgment in making this decision.

(vi) Personnel shall make no attempt to feed, touch, ride, or otherwise intentionally interact with any marine mammals unless undertaken to rescue a marine mammal or otherwise authorized by another permit.

(vii) Mechanical equipment shall be monitored to ensure no entanglements occur with protected species.

(viii) Team members shall immediately respond to an entangled animal, halting operations and providing an onsite response assessment (allowing the animal to disentangle itself, assisting with disentanglement, etc.), unless doing so would compromise human safety.

(f) Marine debris research and removal protocols. (1) Prior to initiating any marine debris removal operations, marine debris personnel shall thoroughly examine the beaches and near shore environments/waters for Hawaiian monk seals before approaching marine debris sites and initiating removal activities.

(2) Debris shall be retrieved in compliance with all Federal laws, rules, and regulations governing wildlife in the area. Debris removal shall occur a minimum distance of 50 yards from all monk seals and a minimum of 100 yards from female seals with pups.

(g) Bottomfishing protocols. (1) PIFSC shall initiate marine mammal watches (visual observation) no less than 30 minutes (or for the duration of transit between set locations, if shorter than 30 minutes) prior to both deployment and retrieval of bottomfishing hook-and-line gear. Marine mammal watches shall be conducted by scanning the surrounding waters with the naked eye and rangefinding binoculars (or monocular). During nighttime operations, visual observation shall be conducted using the naked eye and available vessel lighting.

(2) PIFSC shall implement the move-on rule mitigation protocol, as described in this paragraph. If one or more marine mammals are observed in the vicinity of the planned location before gear deployment, and are considered at risk of interacting with the vessel or research gear, or appear to be approaching the vessel and are considered at risk of interaction, PIFSC shall either remain onsite or move on to another sampling location. If remaining onsite, the set shall be delayed. If the animals depart or appear to no longer be at risk of interacting with the vessel or gear, a further observation period shall be conducted. If no further observations are made or the animals still do not appear to be at risk of interaction, then the set may be made. If the vessel is moved to a different section of the sampling area, the move-on rule mitigation protocol would begin anew. If, after moving on, marine mammals remain at risk of interaction, the PIFSC shall move again or skip the station. Marine mammals that are sighted shall be monitored to determine their position and movement in relation to the vessel to determine whether the move-on rule mitigation protocol should be implemented. PIFSC may use best professional judgment in making these decisions.

(3) Dead fish and bait shall not be discarded from the vessel while actively fishing. Dead fish and bait shall be discarded after gear is retrieved and immediately before the vessel leaves the sampling location for a new area.

(4) If a hooked fish is retrieved and it appears to the fisher (based on best professional judgment) that it has been damaged by a marine mammal, visual monitoring shall be enhanced around the vessel for the next 10 minutes. Fishing may continue during this time. If a shark is sighted, visual monitoring may return to normal. If a marine mammal is seen in the vicinity of a bottomfishing operation, the gear shall be retrieved immediately and the vessel shall move to another sampling location where marine mammals are not present. Catch loss and a “move on” for marine mammals shall be tallied on the data sheet.

(5) If bottomfishing gear is lost while fishing, visual monitoring shall be enhanced around the vessel for the next 10 minutes. Fishing may continue during this time. If a shark is sighted, visual monitoring may return to normal. If a marine mammal is observed in the vicinity, it shall be monitored until a determination can be made (based on best professional judgment) of whether gear is sighted attached to the animal, gear is suspected to be on the animal, or gear is not observed on the animal and it behaves normally. If gear is sighted with gear attached or suspected to be attached, procedures and actions for incidental take shall be initiated, as outlined in § 219.66. Gear loss and a “move on” for marine mammals shall be tallied on the data sheet.

(h) Instrument and trap deployments. (1) PIFSC shall initiate marine mammal watches (visual observation) no less than 30 minutes (or for the duration of transit between set locations, if shorter than 30 minutes) prior to both deployment and retrieval of instruments and traps. Marine mammal watches shall be conducted by scanning the surrounding waters with the naked eye and rangefinding binoculars (or monocular).

(2) PIFSC shall implement the move-on rule mitigation protocol, as described in this paragraph. If one or more marine mammals are observed in the vicinity of the planned location before gear deployment, and are considered at risk of interacting with the vessel or research gear, or appear to be approaching the vessel and are considered at risk of interaction, PIFSC shall either remain onsite or move on to another sampling location. If remaining onsite, the instrument or trap deployment shall be delayed. If the animals depart or appear to no longer be at risk of interacting with the vessel or gear, a further observation period shall be conducted. If no further observations are made or the animals still do not appear to be at risk of interaction, then the gear may be deployed. If the vessel is moved to a different section of the sampling area, the move-on rule mitigation protocol would begin anew. If, after moving on, marine mammals remain at risk of interaction, the PIFSC shall move again or skip the station. Marine mammals that are sighted shall be monitored to determine their position and movement in relation to the vessel to determine whether the move-on rule mitigation protocol should be implemented. PIFSC may use best professional judgment in making these decisions. PIFSC must retrieve gear immediately if marine mammals are believed to be entangled in an instrument or trap line or associated gear and follow disentanglement protocols.

(a) Compliance coordination. PIFSC shall designate a compliance coordinator who shall be responsible for ensuring compliance with all requirements of any LOA issued pursuant to §§ 216.106 of this chapter and 219.67 and for preparing for any subsequent request(s) for incidental take authorization.

(b) Visual monitoring program. PIFSC shall comply with the following monitoring requirements:

(1) Marine mammal visual monitoring shall occur prior to deployment of trawl nets, longlines, bottomfishing gear, instruments, and traps, respectively; throughout deployment of gear and active fishing of research gears (not including longline soak time); prior to retrieval of longline gear; and throughout retrieval of all research gear.

(2) Marine mammal watches shall be conducted by watch-standers (those navigating the vessel and/or other crew) at all times when the vessel is being operated.

(c) Training. (1) PIFSC must conduct annual training for all chief scientists and other personnel who may be responsible for conducting dedicated marine mammal visual observations to explain mitigation measures and monitoring and reporting requirements, mitigation and monitoring protocols, marine mammal identification, completion of datasheets, and use of equipment. PIFSC may determine the agenda for these trainings.

(2) PIFSC shall also dedicate a portion of training to discussion of best professional judgment, including use in any incidents of marine mammal interaction and instructive examples where use of best professional judgment was determined to be successful or unsuccessful.

(3) PIFSC shall coordinate with NMFS' Office of Science and Technology to ensure training and guidance related to handling procedures and data collection is consistent with other fishery science centers, where appropriate.

(d) Handling procedures and data collection. (1) PIFSC must develop and implement standardized marine mammal handling, disentanglement, and data collection procedures. These standard procedures will be subject to approval by NMFS OPR and must be complied with by PIFSC if approved.

(2) For any marine mammal interaction involving the release of a live animal, PIFSC shall collect necessary data to facilitate a serious injury determination, when practicable.

(3) PIFSC shall provide its relevant personnel with standard guidance and training regarding handling of marine mammals, including how to identify different species, bring an individual aboard a vessel, assess the level of consciousness, remove fishing gear, return an individual to water, and log activities pertaining to the interaction.

(4) PIFSC shall record marine mammal interaction information on standardized forms, which will be subject to approval by OPR. PIFSC shall also answer a standard series of supplemental questions regarding the details of any marine mammal interaction.

(e) Reporting. (1) Marine mammal capture/entanglements (live or dead) must be reported immediately to the relevant regional stranding coordinator (Hawai'i Statewide Marine Animal Stranding, Entanglement, and Reporting Hotline, 888-256-9840; Guam Conservation Office Hotline, 671-688-3297; Commonwealth of the Northern Mariana Islands Division of Fish and Wildlife Hotline, 670-287-8537; American Samoa Department of Marine and Wildlife Resources, 684-633-4456), OPR (301-427-8401), and NMFS Pacific Islands Regional Office (808-725-5000).

(2) PIFSC shall report all incidents of marine mammal interaction to NMFS's Protected Species Incidental Take database within 48 hours of occurrence and shall provide supplemental information to OPR upon request. Information related to marine mammal interaction (animal captured or entangled in research gear) must include details of survey effort, full descriptions of any observations of the animals, the context (vessel and conditions), decisions made, and rationale for decisions made in vessel and gear handling.

(3) PIFSC shall submit an annual summary report to OPR:

(i) The report must be submitted no later than 90 days following the end of a given calendar year. The first annual report must cover the period from the date of issuance of the LOA through the end of that calendar year and the entire first full calendar year of the authorization. Subsequent reports will cover only 1 full calendar year. PIFSC shall provide a final report within 30 days following resolution of comments on the draft report.

(ii) These reports shall contain, at minimum, the following:

(A) Annual line-kilometers surveyed during which the EK60, EM 300, and ADCP Ocean Surveyor (or equivalent sources) were predominant and associated pro-rated estimates of actual take;

(B) Summary information regarding use of all longline, bottomfishing, and trawl gear, including number of sets, tows, etc., specific to each gear;

(C) Accounts of surveys where marine mammals were observed during sampling but no interactions occurred;

(D) Accounts of all incidents of marine mammal interactions, including circumstances of the event and descriptions of any mitigation procedures implemented or not implemented and why and, if released alive, serious injury determinations;

(E) Summary information related to any disturbance of pinnipeds, including event-specific total counts of animals present, counts of reactions according to the three-point scale, and distance of closest approach;

(F) A written description of any mitigation research investigation efforts and findings (e.g., line modifications);

(G) A written evaluation of the effectiveness of PIFSC mitigation strategies in reducing the number of marine mammal interactions with survey gear, including best professional judgment and suggestions for changes to the mitigation strategies, if any; and

(H) A summary of all relevant training provided by PIFSC and any coordination with NMFS Office of Science and Technology and the Pacific Islands Regional Office.

(f) Reporting of injured or dead marine mammals. (1) If any activity defined in § 219.61(a) causes the take of a marine mammal in a prohibited manner, PIFSC personnel engaged in the research activity shall immediately cease such activity until such time as an appropriate decision regarding activity continuation can be made by the PIFSC Director (or designee). The incident must be reported immediately to OPR and the NMFS Pacific Islands Regional Office. OPR will review the circumstances of the prohibited take and assess what measures are necessary to minimize the likelihood of further prohibited take and ensure Marine Mammal Protection Act (MMPA) compliance. The immediate decision made by PIFSC regarding continuation of the specified activity is subject to OPR concurrence. The report must include the following information:

(i) Time, date, and location (latitude/longitude) of the incident;

(ii) Description of the incident including, but not limited to, monitoring prior to and occurring at time of the incident;

(iii) Environmental conditions (e.g., wind speed and direction, Beaufort sea state, cloud cover, 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) Status of all sound source use in the 24 hours preceding the incident;

(vii) Water depth;

(viii) Fate of the animal(s) (e.g. dead, injured but alive, injured and moving, blood or tissue observed in the water, status unknown, disappeared, etc.); and

(ix) Photographs or video footage of the animal(s).

(2) In the event that PIFSC 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), PIFSC shall immediately report the incident to OPR and the NMFS Pacific Islands Regional Office. The report must include the information identified in paragraph (f)(1) of this section. Activities may continue while OPR reviews the circumstances of the incident. OPR will work with PIFSC to determine whether additional mitigation measures or modifications to the activities are appropriate.

(3) In the event that PIFSC discovers an injured or dead marine mammal and determines that the injury or death is not associated with or related to the activities defined in § 219.61(a) (e.g., previously wounded animal, carcass with moderate to advanced decomposition, scavenger damage), PIFSC shall report the incident to OPR and the Pacific Islands Regional Office, NMFS, within 24 hours of the discovery. PIFSC shall provide photographs or video footage or other documentation of the stranded animal sighting to OPR.

(4) In the event of a ship strike of a marine mammal by any PIFSC or partner vessel involved in the activities covered by the authorization, PIFSC or partner shall immediately report the information in paragraph (f)(1) of this section, as well as the following additional information:

(i) Vessel's speed during and leading up to the incident;

(ii) Vessel's course/heading and what operations were being conducted;

(iii) Status of all sound sources in use;

(iv) Description of avoidance measures/requirements that were in place at the time of the strike and what additional measures were taken, if any, to avoid strike;

(v) Estimated size and length of animal that was struck; and

(vi) Description of the behavior of the marine mammal immediately preceding and following the strike.

(a) To incidentally take marine mammals pursuant to these regulations, PIFSC 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, PIFSC 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, PIFSC must apply for and obtain a modification of the LOA as described in § 219.68.

(e) The LOA shall set forth:

(1) Permissible methods 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.

(a) An LOA issued under §§ 216.106 of this chapter and 219.67 for the activity identified in § 219.61(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) OPR 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), OPR 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 219.67 for the activity identified in § 219.61(a) may be modified by OPR under the following circumstances:

(1) OPR may utilize an adaptive management process to modify or augment the existing mitigation, monitoring, or reporting measures (after consulting with PIFSC 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 these regulations.

(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 PIFSC's monitoring reports from the previous year(s).

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

(C) Any information that reveals marine mammals may have been taken in a manner, extent or number not authorized by these regulations or subsequent LOAs.

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

(2) If OPR 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 219.67, an LOA may be modified without prior notice or opportunity for public comment. Notice would be published in the Federal Register within 30 days of the action.