---
kind: "unit"
title: "50"
title_heading: "Wildlife and Fisheries"
key: "chI/subchB/part18/subpartL"
level: "subpart"
label: "Subpart L"
heading: "Nonlethal Taking of Marine Mammals Incidental to Pile Driving and Marine Construction Activities in the Gulf of Alaska"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/50/chI-subchB-part18-subpartL"
sections_count: 11
---

# Subpart L — Nonlethal Taking of Marine Mammals Incidental to Pile Driving and Marine Construction Activities in the Gulf of Alaska

Title 50 C.F.R. — Wildlife and Fisheries › Chapter I — United States Fish and Wildlife Service, Department of the Interior › Subchapter B — Taking, Possession, Transportation, Sale, Purchase, Barter, Exportation, and Importation of Wildlife and Plants › Part 18 — Marine Mammals

## Sections

- [§18.142. Specified activities covered by this subpart.](/cfr/50/18.142.md)
- [§18.143. Specified geographic region where this subpart applies.](/cfr/50/18.143.md)
- [§18.144. Dates this subpart is in effect.](/cfr/50/18.144.md)
- [§18.145. Procedure to obtain a Letter of Authorization (LOA).](/cfr/50/18.145.md)
- [§18.146. How the Service will evaluate a request for an LOA.](/cfr/50/18.146.md)
- [§18.147. Authorized take allowed under an LOA.](/cfr/50/18.147.md)
- [§18.148. Prohibited take under an LOA.](/cfr/50/18.148.md)
- [§18.149. Mitigation.](/cfr/50/18.149.md)
- [§18.150. Monitoring.](/cfr/50/18.150.md)
- [§18.151. Reporting requirements.](/cfr/50/18.151.md)
- [§18.152. Information collection requirements.](/cfr/50/18.152.md)