Sectors replaced Coast Guard Groups, Marine Safety Offices (MSO), Activities, and Vessel Traffic Services (VTS).
Previously, a Group and its units provided Search and Rescue (SAR), maritime law enforcement, recreational boating safety, and maintained aids to navigation.
The attacks of September 11 called for a new Coast Guard unity of effort that was cumbersome to achieve using the previous multiple command port-level structure.
[1] The Coast Guard Sector provides for rapid, coordinated response to emergencies, whether natural (such as Hurricane Katrina) or man-made, along with integrated daily operations to enforce regulations governing marine safety, security, and environmental protection.
[2] Coast Guard Sectors serve as one-stop-shops for marine safety, security, and environmental protection for major seaports and regions.
They bring multi-mission capabilities to life on the front lines of the maritime environment, where Sector Commanders are afforded broad authority.
The SCC coordinates with other federal, state, and local operations centers, and issues Notices to Mariners, Situation Reports, and maritime security alerts.
The Logistics Department performs unit level maintenance and organic engineering, personnel, medical support, and finance/supply functions for the entire Sector.