Security Zone; U.S. Coast Guard Base, Los Angeles Harbor Main Channel, Los Angeles, CA

What it does

• •Establishes a permanent security zone covering all navigable waters within 40 yards of the U.S. Coast Guard Base on Terminal Island in Los Angeles Harbor's main channel.
• •Prohibits all vessels and persons from entering, transiting through, or anchoring in the security zone without authorization from the Captain of the Port Los Angeles-Long Beach or their designated representative.
• •Requires those seeking entry to contact the Coast Guard Sector Los Angeles-Long Beach Command Center at 310-521-3801 to request permission.
• •Becomes enforceable on October 1, 2026.

Why it matters

• •The Coast Guard states the zone is necessary to protect military service members on vessels and military and government personnel and property on Terminal Island from past security incidents involving activities adjacent to or near Coast Guard assets.
• •The regulation will be accompanied by a Local Notice to Mariners and Marine Safety Information Bulletin to inform maritime traffic of the restrictions.

Who is affected

• •Vessel operators and mariners transiting or anchoring in the Los Angeles Harbor main channel near Terminal Island.
• •Commercial shipping, maritime businesses, and other entities conducting operations in the affected area of Los Angeles Harbor.
• •The Coast Guard certifies the proposed rule will not have a significant economic impact on a substantial number of small entities.

What happens next

The Coast Guard is accepting public comments on this proposed rulemaking through September 11, 2026, via regulations.gov (docket USCG-2026-0763); final promulgation will follow consideration of these comments.