When conducting activities identified in §218.50, the mitigation measures contained in the LOA issued under §216.106 of this chapter and §218.56 must be implemented. These mitigation measures shall include but are not limited to the following general conditions:

(a) Execute missions during day-light hours only, no more than four hours per day, no more than one day during 2017, no more than four days per year for 2018 through 2022 over a five-day period, on weekdays, and only during summer (June through August) or fall (September through November) months.

(b) Delay live munition detonations if a marine mammal is observed within the designated exclusion zone (2.3 mile (mi) (3,704 m) from the weapon impact site), resuming only after the animal is observed exiting the exclusion zone or the exclusion zone has been clear of any additional sightings for a period of 30 minutes.

(c) Delay live munition detonations if a marine mammal is observed in an impact zone but outside of the 2.3 mi exclusion zone and if the manner of taking is not authorized (e.g., animal is observed in Level A impact zone for that species and no Level A take is authorized), resuming only after the animal is observed exiting the zone.

(d) Shift the target site as far as possible from an observed marine mammal's location (but within the two-mile wide weapon impact area) if a marine mammal is observed during the pre-mission survey or during missions and continuing the mission will not result in an unauthorized take of a marine mammal.

(e) Suspend live munition detonations if an unauthorized take of a marine mammal occurs, and report the incident to NMFS Office of Protected Resources (OPR), NMFS Pacific Islands Regional Office (PIRO), and the Pacific Islands Region Marine Mammal Stranding Network representative immediately followed by a report to NMFS within 24 hours.

(f) Implement a best management practice, on a daily basis, of conducting inert munition training or small bomb detonations prior to detonating large bombs if the Project Engineer/Commanding Office determines this practice does not interfere with mission training.

(g) Additional mitigation measures as contained in an LOA.