NS Mayport Community

NS Mayport
Tenant Commands

Tenant Commands

NS Mayport Tenant Commands



Afloat Training Group Mayport (ATGM) provides fleet training, assessments, and certification assistance to surface force Immediate Superiors in Command (ISICs), Type Commander (TYCOM), U.S. Navy and U.S. Coast Guard unit commanding officers, and foreign military, when directed; assists in determining the critical tasks and standards for all classes of ships related to mission area training; supports the Surface Warfare Enterprise (SWE) and other Navy enterprises with personnel and data; and conducts waterfront training seminars. ATGM educates and trains ships’ crews in establishing and maintaining required operational capabilities and continuous training requirements to increase warfighting competence and effectively accomplish missions. They work the basic phase of training to educate, train and assess Sailors in engineering; damage control; combat systems; anti-terrorism and force protection; visit board search and seizure; navigation; seamanship; aviation; medical; supply; 3M; search and rescue swimmer training and evaluations; and monthly in-port training exercises.


U.S. 4th Fleet (C4F) is the numbered fleet assigned to U.S. Naval Forces Southern Command (USSOUTHCOM) to execute their mission in the U.S. Southern Command area of focus. Fourth Fleet conducts several exercises and deployments in the region throughout the year, including: Continuing Promise, a humanitarian assistance deployment that provides health care, civic assistance and training, and conducts community relations with nations in the region; Southern Partnership Station, a deployment utilizing a variety of platforms to provide training and information-sharing; Southern Seas, an annual deployment that focuses on partnership building and conducts a variety of Theatre Security Cooperation events to ensure maritime security in the region; UNITAS, the longest-running maritime exercise, conducted annually to promote interoperability among partner nations throughout the region; and PANAMAX, the largest multinational maritime exercise, which is conducted annually and focuses on interoperability of an international force to protect the Panama Canal.


U.S. Naval Forces Southern Command (COMUSNAVSO) is the naval component for U.S. Southern Command (USSOUTHCOM), the joint command headquartered in Miami. COMUSNAVSO directs U.S. naval forces operating in the region and interacts with Caribbean, Central, and South American navies and civil forces to shape the maritime environment within USSOUTHCOM’s area of focus in support of the maritime strategy. With an emphasis on Theatre Security Cooperation (TSC), COMUSNAVSO works to build and strengthen relations, develop partner nation capabilities, and maintain maritime access to defend the United States. TSC encompasses a robust strategy, which includes military-to-military and subject matter expert exchanges, multinational exercises and training, diplomatic port visits and community relations activities. COMUSNAVSO also provides operational control of U.S. Navy units supporting joint and interagency efforts in counter illicit trafficking (CIT) operations.


Destroyer Squadron 14 (CDS 14) is the Navy’s largest destroyer squadron and is homeported in Mayport, Florida. As Common Support Directorate (CSD) and also the head of FFG CLASSRON, CDS 14 responsibilities are threefold. As the Immediate Superior in Command (ISIC) of 13 assigned surface ships homeported in Mayport, CDS 14 executes direct oversight of assigned ships during the maintenance, unit-level training and intermediate training phases, and discretionary oversight of assigned units while they are deployed in support of scheduled deployments, homeland defense and the global war on terrorism.

As CSD, CDS 14 provides religious, medical, career counseling, industrial hygiene, manpower management and equal opportunity program support to surface ships homeported in Mayport. CDS 14 reports administratively to Commander, Naval Surface Force, U.S. Atlantic Fleet and operationally to Commander, U.S. 2nd Fleet.


Commander, Destroyer Squadron 40 (CDS 40) reports directly to COMUSNAVSO/COMFOURTHFLEET. The squadron provides dedicated support to operations in the U.S. Southern Command’s area of responsibility. CDS 40 routinely conducts significant multinational exercises and operations, working with North, Central and South American navies to enhance regional cooperation and improve interoperability with our partner nations. Additionally, CDS 40 serves as the command element for various humanitarian assistance and foreign disaster recovery missions throughout the USSOUTHCOM area of responsibility.


Littoral Combat Ship Squadron Two (LCSRON TWO) is the east coast Immediate Superior in Command (ISIC) for Littoral Combat Ships (LCS) homeported in Mayport, Florida, and is responsible for the training, readiness, maintenance and support of assigned ships and crews.

In addition to normal ISIC duties, LCSRON TWO has functions that normally reside with the Type Commander (TYCOM), crew, and Afloat Training Group (ATG) in order to minimally man and rotationally crew the ships. LCSRON TWO serves as a shore support extension of the crews and provides services needed with respect to training, logistics and maintenance. N7 serves as crew training teams as well as ISIC and ATG assessors and coordinates with the Center for Surface Combat Systems (CSCS) managed LCS Training Facility (LTF) where much of the crew’s training is conducted. N1 manages the crews’ administration. N9 does the crew’s pay and personnel functions and manages training tracks for pre-commissioned crews and replacement Sailors and Reserve coordination. There are 3MCs and ship maintenance teams in N4 for each ship/crew coordinate preventative and corrective maintenance with Southeast Regional Maintenance Center (SERMC), and supply functions are performed by the Logistics Support Team (LST), Fleet Logistic Center (FLC) personnel embedded in LCSRON TWO who order supplies and parts for each ship/crew. Our mission is to ensure the ships remain fully mission capable and ready through seamless support to the crews.


The mission of the Explosive Ordnance Disposal (EOD) team is to eliminate hazards from ordnance, which jeopardize operations conducted in support of the national security strategy, by providing combat-ready EOD forces to the fleet.

EOD shore-based detachments are at shore activities that have a need for continuous EOD support. EOD mission support includes general ordnance handling, transportation, storage, disposal and safety missions, live fire training, range clearance and underwater ordnance testing. A shore-based EOD detachment may be deployed by their operational commander for area or regional response in support of military and civilian incidents and accidents involving underwater and surface ordnance, nuclear and chemical weapons, and improvised explosive devices. These operations may involve diving, collecting ordnance-related intelligence and providing EOD support in response to requests by higher authority. Additionally, they provide VIP protective support for the U.S. Secret Service and the U.S. Department of State, as required.


Mayport’s Meteorological and Oceanographic (METOC) Detachment is on the ground floor of Building 90 (Air Tower), across the hall from Air Operations. Its mission is to provide METOC support products and analysis to meet the needs of customers (aircraft, ships, staffs and those commands supporting warfighting efforts from ashore) and ensure the maximum protection of operational resources and safety of flight. Primary support products include the local area forecast (updated daily on the internet) and observation/warning support for all aircraft. Flight weather briefs are now provided by Naval Aviation Forecast Center Norfolk (via phone or internet). Please contact the detachment at 904-270-6196 with any customer service requests or questions. For the most current weather information available, log on to https://weather.navy.mil/AviationWeb.


Located on the northeast corner of the naval station, the Training Support Department (TSD) supports fleet training provided by seven training centers, including the Center for Naval Engineering (CNE), Center for Surface Combat Systems (CSCS), Center for Security Forces (CSF), Center for Naval Aviation Technical Training (CNATT), Center for Naval Leadership (CNL), Center for Information Technologies (CIT) and Center for Personnel Development (CPD). The training sites provide training for afloat units, air wings, shore activities and international allies. TSD offers 41 courses, including damage control, firefighting, propulsion plant control, anti-submarine warfare, leadership development, combat systems and electronic repair. TSD also offers seven Video Tele-Training (VTT) courses. TSD uses new, energy-efficient, pollution-free firefighting training facilities that simulate shipboard compartments, complete with locker and bilge areas, and stages fires fueled by computer-controlled propane gas jets. TSD also has a similar propane-fired facility for flight deck firefighting and a shipboard wet trainer.


Mission: With preparation, study and practice … engage the enemy … and win! Train Sailors and surface warriors to achieve operational excellence. Prepare and qualify our people to correctly maintain, operate and, if necessary, fight our surface ships while conducting sustained combat operations at sea. Synchronize our warfare systems with a training investment in people to deliver the capability to successfully execute across the “Kill Chain” against the threats of today that face our Sailors in ships.

Vision: The Center for Surface Combat Systems Detachment Mayport will professionally and efficiently support all Navy training sites in the Southeast Region such that ships are combat-ready and individual Sailors can readily meet their professional requirements and personal goals.


Southeast Regional Maintenance Center (SERMC) is Naval Station Mayport’s largest tenant command with more than 800 military and civilian personnel who provide all levels of maintenance and repair support to ships of the Atlantic Fleet. The mission of SERMC is to provide ship repair, modernization, engineering and technical support services for naval ships assigned or operating within the Southeast United States and South American geographical area. SERMC, serving as U.S. Fleet Forces Command’s direct waterfront maintenance representative in Mayport, administers contracts for depot-level industrial repairs; screens ship maintenance requests to determine when and where maintenance will be performed based on availability of resources; and provides coordination and support to group and squadron commanders and their assigned ships as Mayport’s single point of contact for maintenance issues. Located on Massey Avenue, adjacent to Echo Wharf, SERMC houses a 177,000-square-foot industrial facility with more than 60 shops and work centers, including a fully equipped dive locker, a CNC-equipped machine shop, a marine gas turbine repair and change-out shop, and facilities for repair and maintenance of hundreds of different mechanical and electronic systems. SERMC also provides contract administration and oversight for more than $100 million in private shipyard and ship repair contractor work on Navy ships each year. SERMC exists to maintain our ships at a level of material readiness that will allow the ships to get to the fight and win once they get there.


Naval Station Mayport proudly hosts Commander, Helicopter Maritime Strike Wing, U.S. Atlantic Fleet (COMHSMWINGLANT). The wing is responsible for the material readiness and training of all Atlantic Fleet Helicopter Maritime Strike (HSM) and Helicopter Anti-Submarine Light (HSL) squadrons. COMHSMWINGLANT consists of more than 2,500 personnel and has more than 73 SH-60R aircraft assigned. The wing currently supports one fleet replacement squadron (HSM-40), two fleet squadrons (HSM-46 and HSM-48), a fleet reserve squadron (HSL-60) and the HSM Weapons School (HSMWSL) at Naval Station Mayport, and two fleet squadrons (HSM-70 and HSM-74), the Surface Rescue Swimmers School (SRSS) and Carrier Tactical Support Center (CV-TSC) at NAS Jacksonville. The HSM squadrons operate the SH-60R and deploy in one or two aircraft detachments aboard aircraft carriers, cruisers, destroyers and frigates. The detachments provide their respective ships with extensive capabilities in anti-submarine warfare and anti-surface warfare. The HSM Wing is also responsible for Aviation Support Detachment (ASD) Mayport. This activity supports the HSM community’s supply requirements.


The Fleet Readiness Center Southeast (FRC-SE) Mayport is in Building 1553, which it shares with Commander Helicopter Strike Maritime Wing Atlantic (CHSMWL).

FRC-SE Mayport’s primary mission is to provide “ready for issue” aircraft components and support equipment, as well as intermediate-level maintenance support services to battle group commanders, aircraft carrier air wings, CHSMWL squadrons and the naval supply system. FRC-SE Mayport’s outstanding efforts enable U.S. naval air forces to sustain outstanding levels of readiness in support of operations around the world.

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