Hurricane Safety Zones Pop Up Like Storm Clouds
Published Date: 8/28/2026
Rule
Summary
Starting September 28, 2026, the Coast Guard will set up special safety zones in the Mobile area whenever hurricanes or severe storms hit. This means boats and businesses in the zone must follow new rules to keep everyone safe before, during, and after bad weather. These quick-activate zones help protect people, ships, and the environment without causing big delays or extra costs.
Analyzed Economic Effects
6 provisions identified: 1 benefits, 5 costs, 0 mixed.
Temporary Port Safety Zones for Severe Weather
Starting September 28, 2026, the Coast Guard may activate a safety zone covering all navigable waters in the Sector Mobile Captain of the Port zone (as described in 33 CFR 3.40-10) when hurricanes, tropical storms, or other severe weather threaten the area. The specific restricted areas and enforcement dates will be announced in advance by Broadcast Notice to Mariners and other public advisories.
Rules for Large Vessels (500 GT+) During Storms
Oceangoing vessels 500 gross tons (GT) and above must report intentions to depart or remain to the COTP; vessels electing to depart should plan to leave no later than Port Condition YANKEE (when gale force winds are predicted to make landfall within 24 hours). Vessels wishing to remain must submit a Notice of Intent to Remain prior to Port Condition X-RAY (48 hours), and oceangoing vessels and Coast Guard-regulated barges greater than 500 GT are prohibited from anchoring within the COTP's territorial waters during a severe weather event.
Cargo and Bunkering Suspensions and Safety Rules
Terminal operators and vessels must suspend cargo operations in preparation for storm arrival; containers should be stacked no more than 4 high. Bunkering and lightering operations will be suspended at the COTP's discretion and are suspended when winds reach sustained 40 mph; transfer hoses and arms must be disconnected prior to sustained winds over 50 mph.
AIS Must Be Activated Before Storms
All commercial vessels with an installed Automatic Identification System (AIS)—regardless of tonnage, length, or service—must activate AIS prior to when Port Condition X-RAY is set (when gale force winds >39 mph or 47 knots are predicted to make landfall within 48 hours) and keep AIS activated through Port Condition RECOVERY. Vessel operators must contact the COTP if the installed AIS is not activated.
Port Condition Triggers and Timing
The rule defines Port Conditions based on predicted time to landfall: WHISKEY (within 72 hours), X-RAY (within 48 hours), YANKEE (within 24 hours), and ZULU (within 12 hours). These port conditions are set when sustained gale force winds or higher—greater than 39 mph or 47 knots—are predicted to make landfall in the port.
Coast Guard Certified Minimal Small-Business Impact
Under the Regulatory Flexibility Act, the Coast Guard certifies this rule will not have a significant economic impact on a substantial number of small entities because the restrictions will only be enforced for short periods during heavy weather when operations are already limited by environmental factors.
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