(a) Regulations in this subpart apply only to the U.S. Navy for the taking of marine mammals that occurs in the area outlined in paragraph (b) of this section and that occurs incidental to the activities described in paragraph (c) of this section.

(b) The taking of marine mammals by the Navy is only authorized if it occurs within the NWTT Study Area, which is composed of established maritime operating and warning areas in the eastern North Pacific Ocean region, including areas of the Strait of Juan de Fuca, Puget Sound, and Western Behm Canal in southeastern Alaska. The Study Area includes air and water space within and outside Washington state waters, and outside state waters of Oregon and Northern California. The Study Area includes four existing range complexes and facilities: The Northwest Training Range Complex (NWTRC), the Keyport Range Complex, Carr Inlet Operations Area, and SEAFAC. In addition to these range complexes, the Study Area also includes Navy pierside locations where sonar maintenance and testing occurs as part of overhaul, modernization, maintenance and repair activities at NAVBASE Kitsap, Bremerton; NAVBASE Kitsap, Bangor; and Naval Station Everett.

(c) The taking of marine mammals by the Navy is only authorized if it occurs incidental to the following activities within the designated amounts of use:

(1) Sonar and other Active Sources Used During Training:

(i) Mid-frequency (MF) Source Classes:

(A) MF1—an average of 166 hours per year.

(B) MF3—an average of 70 hours per year.

(C) MF4—an average of 4 hours per year.

(D) MF5—an average of 896 items per year.

(E) MF11—an average of 16 hours per year.

(ii) High-frequency (HF) Source Classes:

(A) HF1—an average of 48 hours per year.

(B) HF4—an average of 384 hours per year.

(C) HF6—an average of 192 hours per year

(iii) Anti-Submarine Warfare (ASW) Source Classes:

(A) ASW2—an average of 720 items per year per year.

(B) ASW3—an average of 78 hours per year.

(2) Sonar and other Active Sources Used During Testing:

(i) Low-frequency (LF) Source Classes:

(A) LF4—an average of 110 hours per year.

(B) LF5—an average of 71 hours per year.

(ii) Mid-frequency (MF):

(A) MF1—an average of 32 hours per year

(B) MF3—an average of 145 hours per year.

(C) MF4—an average of 10 hours per year.

(D) MF5—an average of 273 items per year.

(E) MF6—an average of 12 items per year.

(F) MF8—an average of 40 hours per year.

(G) MF9—an average of 1,183 hours per year.

(H) MF10—an average of 1,156 hours per year.

(I) MF11—an average of 34 hours per year.

(J) MF12—an average of 24 hours per year.

(iii) High-frequency (HF) and Very High-frequency (VHF):

(A) HF1—an average of 161 hours per year.

(B) HF3—an average of 145 hours per year.

(C) HF5—an average of 360 hours per year.

(D) HF6—an average of 2,099 hours per year.

(iv) VHF:

(A) VHF2—an average of 35 hours per year.

(B) [Reserved]

(v) ASW:

(A) ASW1—an average of 16 hours per year.

(B) ASW2—an average of 64 hours per year.

(C) ASW2—an average of 170 items per year.

(D) ASW3—an average of 444 hours per year.

(E) ASW4—an average of 1,182 items per year.

(vi) Acoustic Modems (M):

(A) M3—an average of 1,519 hours per year.

(B) [Reserved]

(vii) Torpedoes (TORP):

(A) TORP1—an average of 315 items per year.

(B) TORP2—an average of 299 items per year.

(viii) Swimmer Detection Sonar (SD):

(A) SD1—an average of 757 hours per year.

(B) [Reserved]

(ix) Synthetic Aperture Sonar (SAS):

(A) SAS2—an average of 798 hours per year.

(B) [Reserved]

(3) Impulsive Source Detonations During Training:

(i) Explosive Classes:

(A) E1 (0.1 to 0.25 pound [lb] NEW)—an average of 48 detonations per year.

(B) E3 (>0.5 to 2.5 lb NEW)—an average of 6 detonations per year.

(C) E5 (>5 to 10 lb NEW)—an average of 80 detonations per year.

(D) E10 (>250 to 500 lb NEW)—an average of 4 detonations per year.

(E) E12 (>650 to 1,000 lb NEW)—an average of 10 detonations per year.

(ii) [Reserved]

(4) Impulsive Source Detonations During Testing:

(i) Explosive Classes:

(A) E3 (>0.5 to 2.5 lb NEW)—an average of 72 detonations per year.

(B) E4 (>2.5 to 5 lb NEW)—an average of 140 detonations (70 sonobuoys) per year.

(C) E8 (>60 to 100 lb NEW)—an average of 3 detonations per year.

(D) E11 (>500 to 650 lb NEW)—an average of 3 detonations per year.

(ii) [Reserved]