SC Federal Installations — Joint Base Charleston, Fort Jackson, Shaw AFB, MCAS Beaufort, MCRD Parris Island

Last verified: May 2026

Joint Base Charleston

Joint Base Charleston, in North Charleston / Goose Creek, is an Air Force / Navy joint base that combines the former Charleston Air Force Base (now Joint Base Charleston Air Base) and the former Naval Weapons Station Charleston. The base is the home of the 628th Air Base Wing and supports C-17 Globemaster III strategic airlift operations from runways shared with Charleston International Airport. The naval portion includes the Naval Weapons Station, Naval Support Activity Charleston, and the Submarine Learning Facility (Atlantic). Total active-duty, reserve, and civilian employment exceeds 22,000.

Cannabis policy at Joint Base Charleston is federal-DoD: any positive cannabis test results in administrative discharge or UCMJ Article 112a action for service members; civilian DoD employees face federal-employee discipline. The April 28, 2026 DOJ Schedule III rescheduling order does not modify federal-employee drug-testing requirements.

MCAS Beaufort and MCRD Parris Island

Beaufort County hosts two of the most important Marine Corps installations on the East Coast:

• MCAS Beaufort — Marine Corps Air Station hosting F/A-18 Hornet and F-35 squadrons. The F-35 transition has been a major DoD-investment driver in the Lowcountry.
• MCRD Parris Island — Marine Corps Recruit Depot Parris Island; primary Marine Corps recruit training for the eastern United States. Historic depot since 1915; trains tens of thousands of Marine recruits annually.

Sen. Tom Davis represents Beaufort and Jasper counties — a fact that has helped shape his legislative posture toward a heavily restricted, law-enforcement-friendly Compassionate Care bill that addresses military-community concerns. See Tom Davis campaign page.

Fort Jackson — Columbia

Fort Jackson, in Columbia, is the U.S. Army’s largest basic-training installation. Per the official Army.mil website: Fort Jackson "trains roughly 50 percent of all Soldiers and more than 60 percent of women entering the Army each year." Fort Jackson’s annual training population (recruits, drill sergeants, support staff) exceeds 100,000, making it one of the largest federal employers in SC by throughput.

Cannabis policy at Fort Jackson is federal-Army: any positive cannabis test by a soldier results in UCMJ Article 112a action; civilian DA employees face federal discipline. Fort Jackson’s presence shapes Columbia-area employment in federal-contractor and federally regulated functions across the Midlands.

Shaw Air Force Base — Sumter

Shaw Air Force Base, in Sumter, hosts the 20th Fighter Wing (F-16CM Fighting Falcon) and is the headquarters of the Ninth Air Force. Shaw’s presence is a defining feature of Sumter County’s economy and has made House Speaker Murrell Smith’s Sumter constituency federally-anchored. Active-duty + civilian + reserve employment exceeds 5,000.

Coast Guard Air Station Charleston

Coast Guard Air Station Charleston conducts maritime SAR (search and rescue), maritime law enforcement, and homeland-security operations along the SC coast. Federal Coast Guard jurisdiction; cannabis prohibition applies to all Coast Guard personnel, regardless of state law.

McEntire Joint National Guard Base — Eastover

McEntire Joint National Guard Base, in Eastover (Richland County), hosts the SC Air National Guard’s 169th Fighter Wing (F-16). McEntire is one of the largest National Guard installations in the country and is dual-status — subject to both state Guard authority (for state activations) and federal authority (for federal activations).

VA Medical Centers and Federal Healthcare Facilities

The Department of Veterans Affairs operates VA Medical Centers in Charleston and Columbia, plus community-based outpatient clinics across the state. VA employees are federal employees subject to federal cannabis prohibition. Federal healthcare employment in SC exceeds 8,000.

Federal Lands — National Parks, Forests, Coastal

Federal land in SC includes:

• National Park Service units: Congaree National Park (the only SC national park); Fort Sumter National Historical Park; Charles Pinckney National Historic Site; Cowpens National Battlefield; Kings Mountain National Military Park; Reconstruction Era National Historical Park; Ninety Six National Historic Site.
• U.S. Forest Service: Francis Marion National Forest (Lowcountry, Berkeley/Charleston/Georgetown counties) and Sumter National Forest (Upstate, multiple counties).
• U.S. Fish and Wildlife Service: Cape Romain National Wildlife Refuge and other refuges along the coast.

Cannabis is prohibited on all federal land regardless of state law. Federal park rangers, USFS personnel, and USFWS personnel enforce federal CFR provisions; possession on federal land carries federal Schedule I (or post-April 28, 2026, Schedule III) exposure.

Charleston International Airport — Joint Civilian-Military

Charleston International Airport (CHS) is a joint civilian-military airport sharing runways with Joint Base Charleston. The civilian terminal operates under federal TSA jurisdiction. TSA officers refer suspected marijuana to local airport police, who book under SC state law. See port + airport page.

Port of Charleston

The Port of Charleston / South Carolina Ports Authority is one of the largest container ports on the U.S. East Coast. Federal Customs and Border Protection (CBP) jurisdiction. Cannabis remains a Schedule I substance for federal customs purposes (and Schedule III after the April 28, 2026 DOJ rescheduling order, though CBP enforcement priorities are substantially unchanged).

Federal-Contractor Footprint

Beyond the active installations, SC has a substantial federal-contractor workforce:

• Boeing 787 — North Charleston final assembly is a federal contractor for USAF P-8 Poseidon and KC-46 programs.
• Charleston-area defense contractors — SPAWAR Atlantic / NIWC Atlantic supports Joint Base Charleston with thousands of contractor positions.
• Columbia-area Fort Jackson contractors — Training-support and base-operations contractors.
• Shaw AFB / Ninth Air Force contractors — Mission-support and base-operations.
• Aerospace contractors — Lockheed Martin, BAE Systems, Raytheon, SAIC, Booz Allen Hamilton operations.

Federal contractors must comply with the federal Drug-Free Workplace Act of 1988 (41 USC § 8101) and Executive Order 12564. See no protections page.

Total SC Federal Footprint

Combining direct DoD employment (~60,000+) with VA and other federal-civilian employment (~10,000+), federal-contractor employment (~125,000+), and federally regulated occupations (DOT, FAA, healthcare DEA-regulated), somewhere on the order of 1 in 8 to 1 in 10 working South Carolinians is in a job where federal law preempts any future state medical-cannabis program. This is a substantially larger federal-employment share than most U.S. states.

What the Federal Schedule III Rescheduling Does Not Change

The April 28, 2026 DOJ Schedule III rescheduling order does not modify:

• UCMJ Article 112a (military cannabis prohibition)
• DoD civilian-employee drug-testing requirements
• The federal Drug-Free Workplace Act of 1988 for contractors
• Executive Order 12564
• DOT Part 40 / Part 382 cannabis-testing requirements
• FAA pilot, mechanic, and ATC testing
• Federal-land cannabis prohibition

The rescheduling changes pharmaceutical-research and tax-treatment dynamics (Section 280E IRC) but does not unwind the federal-employee and federal-contractor cannabis-prohibition framework. SC’s federal-installation footprint thus remains a major structural constraint on any future state cannabis-policy enactment, even after federal rescheduling. See federal rescheduling mirror page.