---
kind: "section"
citation: "50 C.F.R. § 218.151"
title: "50"
number: "218.151"
heading: "Effective dates and definitions."
url: "https://uscodex.org/cfr/50/218.151"
---

# §218.151. Effective dates and definitions.

- (a) **Regulations in this subpart are effective February 3, 2023 through February 2, 2030.**
- (b) In additions to the definitions contained in section 2 of the Marine Mammal Protection Act (MMPA), [16 U.S.C. 1362](/usc/16/1362.md), and [§ 218.103](/cfr/50/218.103.md), the following definitions apply to this subpart:
  - (1) GOA Study Area means the area described in [§ 218.150(b)](/cfr/50/218.150.md?p=b).
  - (2) TMAA means Temporary Maritime Activities Area, as described in [§ 218.150(b)](/cfr/50/218.150.md?p=b).
  - (3) WMA means Western Maneuver Area, as described in [§ 218.150(b)](/cfr/50/218.150.md?p=b).
  - (4) LOA means a Letter of Authorization issued under [§§ 216.106](/cfr/50/216.106.md) of this chapter and 218.156.
  - (5) MTE means major training exercise.
  - (6) Navy means United States Department of the Navy.
  - (7) Navy personnel means active-duty and reserve uniformed Navy personnel and Navy civil servants.
  - (8) Navy contractor means any individual, firm, corporation, partnership, association, or other legal non-Federal entity that enters into a contract directly with the Navy to furnish services, supplies, or construction and is performing or acting in furtherance of those duties.
  - (9) Lookout means an individual designated the responsibility of visually observing mitigation zones.
  - (10) Training activities means military readiness activities described in [§ 218.150](/cfr/50/218.150.md).

## Notes

### Source

Source: 88 FR 690, Jan. 4, 2023, unless otherwise noted.

### Authority

Authority: 16 U.S.C. 1361 et seq.

### Source

Source: 74 FR 28343, June 15, 2009, unless otherwise noted.