Joint Base Charleston (IATA: CHS, ICAO: KCHS, FAA LID: CHS) is a United States military facility located partly in the City of North Charleston, South Carolina and partly in the City of Goose Creek, South Carolina. The facility is under the jurisdiction of the United States Air Force 628th Air Base Wing, Air Mobility Command (AMC). 
A joint civil-military airport, JB Charleston shares runways with Charleston International Airport for commercial airlines operations on the south side of the airfield and general aviation aircraft operations on the east side.
Joint Base Charleston was established in accordance with congressional legislation implementing the recommendations of the 2005 Base Realignment and Closure Commission. The legislation ordered the consolidation of facilities which were adjoining, but separate military installations, into a single Joint Base, one of 12 formed in the United States as a result of the law.
Today, Joint Base Charleston, encompassing over 20,877 acres and supporting 67 Military Commands and Federal Agencies, provides service to over 79,000 Airmen, Sailors, Soldiers, Marines, Coast Guardsmen, DOD civilians, dependents, and retirees.
In supporting Joint Base Charleston, the former Charleston Naval Base has been transformed into a multi-use Federal Complex (231 acres) with 17 Government and Military tenants, as well as homeport for 6 RO-RO Military Sealift Command Ships, 2 Coast Guard National Security Cutters, and 2 NOAA Research Ships.
JB Charleston is home to the 628th Air Base Wing (628 ABW), the host wing for installation support. The 628th ABW's primary duties are to provide installation support to 53 DoD and Federal agencies, servicing a total force of over 79,000 Airmen, Sailors, Soldiers, Marines, Coast Guardsmen, civilians, dependents and retirees on Charleston AFB and Naval Weapons Station Charleston. Additionally, they also provide expeditionary Airmen to combatant commanders in support of joint and combined operations.
The 437th Airlift Wing (437 AW) operates the C-17 Globemaster III strategic airlift aircraft in support of its mission to provide airlift of troops and passengers, military equipment, cargo, and aeromedical equipment and supplies worldwide in accordance with tasking by Air Mobility Command and unified combatant commanders.
The air base has four operational groups consisting of 21 squadrons and two wing staff directorates. It is augmented by a parallel, collocated Air Force Reserve Command (AFRC) "associate" wing, the 315th Airlift Wing (315 AW), which shares the same C-17 aircraft with the 437 AW.
In addition, the USAF Auxiliary Civil Air Patrol Coastal Charleston Composite Squadron is also assigned to JB Charleston. They meet at the Aero Club near the control tower.
On 8 January 2010, the 628th Air Base Wing started its Initial Operating Capability (IOC). The 628th Air Base Wing's primary duties are to provide unsurpassed installation support to 53 DoD and Federal agencies, servicing a total force of over 79,000 Airmen, Sailors, Soldiers, Marines, Coast Guardsmen, civilians, dependents and retirees on Charleston Air Force Base and Naval Weapons Station Charleston. They maintain $2B worth of physical infrastructure across 23 thousand non-contiguous acres. Additionally, they also provide mission-ready expeditionary Airmen to combatant commanders in support of joint and combined operations. The 628th Air Base Wing is set to go Fully Operationally Capable (FOC) on 1 October 2010 with an event taking place at Marrington Plantation at the Naval Weapons Station. Since the IOC phase, personnel on the Naval Weapons Station and the Air Force Base have been working vigrously to make Joint Base Charleston a success.
The Support Activity has expanded its mission and Department of Defense support role with over 40 tenant commands, and today is a training center, with the Naval Nuclear Power Training Command (NNPTC), Nuclear Power Training Unit, Propulsion Facility, and Border Patrol satellite academy; Naval Consolidated Brig, Charleston; Mobile Mine Assembly Unit; Explosive Ordnance Detachments; Marine Corps Reserve Center; an engineering complex, with the Space and Naval Warfare Systems Center (SPAWAR, this is the largest employer in the Charleston area) and is close to the Naval Facilities Engineering Command Southeast; 269 above-ground ammunition magazines, maintenance and storage of military ordnance including mines, and serves as an Army logistics hub, the busiest continental United States surface port in the defense transportation system. In addition, NWS Charleston contains more than 1,800 on-base houses for Navy enlisted and officer dependents as well as Coast Guard dependents, and has a child care facility, elementary and middle schools.
An Air Force Times article dated 21 December 2009 announced the activation of the 628th Air Wing to "take over administrative duties for a number of military commands" in January 2010. The 628th "will essentially serve as the ‘landlord’ for Charleston Air Force Base, the Charleston Naval Consolidated Brig and about 50 other military commands. The unit will handle items such as building and grounds services, supply and civil engineering and public works. 
Because of the construction, larger and heavier aircraft will now be cleared to land on runway 03/21, which will be key when work scheduled for Fiscal Year 2012 begins on runway 15/33, the base's main runway. The last major work done on Joint Base Charleston runways was in 1968.
- Charleston Naval Weapons Station, Joint Base Charleston (>17,000 acres, 27 square miles), Goose Creek and Hanahan
- Space and Naval Warfare Systems Center Atlantic (SPAWAR)
- Naval Nuclear Power Training Command
- Nuclear Power School
- Nuclear Power Training Unit
- Moored Training Nuclear Submarine, USS Daniel Webster (SSBN-626)
- Moored Training Nuclear Submarine, USS Sam Rayburn (SSBN-635)
- Moored Training Nuclear Submarine, USS La Jolla (SSN-701), 2017 delivery
- Moored Training Nuclear Submarine, USS San Francisco (SSN-711), 2019 delivery
- Naval Consolidated Brig, Charleston, East Coast
- Mobile Mine Assembly Unit Eleven (MOMAU-11)
- Naval Operations Support Center Charleston
- Navy Reserve Center
- Navy Munitions Command CONUS, Detachment Charleston
- Explosive Ordnance Detachment
- Naval Health Clinic Charleston
- Navy Dental Clinic
- Naval Criminal Investigative Service Training, Federal Complex
- Lay berth for Roll-On Roll-Off Naval Ships, Military Sealift Command, Federal Complex
- MV Cape Ducato (T-AKR-5051), Military Sealift Command Ship, Ready Reserve Force, Federal Complex
- MV Cape Douglas (T-AKR-5052), Military Sealift Command Ship, Ready Reserve Force, Federal Complex
- MV Cape Domingo (T-AKR-5053), Military Sealift Command Ship, Ready Reserve Force, Federal Complex
- MV Cape Decision (T-AKR-5054), Military Sealift Command Ship, Ready Reserve Force, Federal Complex
- MV Cape Diamond (T-AKR-5055), Military Sealift Command Ship, Ready Reserve Force, Federal Complex
- MV Cape Edmont (T-AKR-5069), Military Sealift Command Ship, Ready Reserve Force, Federal Complex
- Charleston Air Force Base, Joint Base Charleston (3,877 acres, 6.06 square miles), North Charleston
- Charleston Air Force Auxiliary Base, North, SC (2,393 acres, 3.74 square miles)
- Charleston Defense Fuel Storage and Distribution Facility, Hanahan
- 628th Air Base Wing
- 628th Mission Support Group
- 628th Medical Group
- 315th Airlift Wing
- 437th Airlift Wing
- 373rd Training Squadron, Detachment 5
- 1st Combat Camera Squadron
- 412th Logistics Support Squadron OL-AC
- Air Force ROTC Det 772
- Civil Air Patrol – Charleston Composite Squadron
- Coast Guard Sector Charleston (District 7)
- Coast Guard Station Charleston
- Coast Guard Helicopter Air Facility, Johns Island
- Coast Guard Eurocopter HH-65 Dolphin, Johns Island
- Coast Guard Reserves, Charleston
- Coast Guard Maritime Law Enforcement Academy, Federal Complex
- USCGC Hamilton (WMSL-753) National Security Cutter, Federal Complex
- USCGC James (WMSL-754) National Security Cutter, Federal Complex
- USCGC Tarpon, Marine Protector-class coastal patrol boat, Tybee Island
- USCGC Yellowfin, Marine Protector-class coastal patrol boat, Charleston
- USCGC Anvil, Charleston
- United States Army Corps of Engineers, Charleston District
- South Carolina Army National Guard
- Army Reserve Training Center, Naval Weapons Station
- 841st Army Transportation Battalion, Naval Weapons Station
- 1182nd Army Deployment & Distribution Support Battalion, Naval Weapons Station
- 1189th Army Transportation Brigade, Reserve Support Command, Naval Weapons Station
- Army Strategic Logistics Activity, Naval Weapons Station
- Marine Corps Reserve Center, Naval Weapons Station
Federal Complex (former Charleston Naval Base), North Charleston
The former Charleston Naval Base has been transformed into a multi-use Federal Complex (231 acres) with 17 Government and Military tenants, as well as homeport for 6 RO-RO Military Sealift Command Ships, 2 Coast Guard National Security Cutters, and 2 NOAA Research Ships.
- Federal Law Enforcement Training Centers (FLETC), Department of Homeland Security
- NOAA Corps
- Moored FLETC Training Ship, SS Cape Chalmers (T-AK-5036)
- Sea Hawk Interagency Operations Center
- Customs and Border Protection Satellite Academy
- Immigration and Customs Enforcement Satellite Academy
- U.S. Courts, Federal Probation and Pretrial Services Academy
- Food and Drug Administration Training Academy
- National Oceanic and Atmospheric Administration (NOAA)
- National Oceanic and Atmospheric Administration Fisheries Office for Law Enforcement
- NOAAS Nancy Foster (R 352) Ship
- NOAAS Ronald H. Brown (R 104) Ship
- U.S. Department of State
- Global Financial Services Center, U.S. Department of State
- Passport Service Center, U.S. Department of State
- United States Maritime Administration