Last verified: May 2026
The Maryland Adult-Use Program
Maryland voters approved Question 4 in November 2022 (~67% YES); adult-use sales began July 1, 2023. Adults 21+ may possess up to 1.5 oz of flower / 12 g of concentrate. The Maryland Cannabis Administration administers the program. The state has rapidly built out a substantial retail network across Baltimore, Annapolis, Frederick, Hagerstown, and other communities.
Drive-Time Analysis from SC
- Charleston, SC → Baltimore, MD: ~640 miles, ~10-11 hours via I-26 / I-95.
- Columbia, SC → Baltimore, MD: ~555 miles, ~9-10 hours via I-77 / I-95.
- Florence, SC → Baltimore, MD: ~455 miles, ~8 hours via I-95.
Maryland is significantly farther than Virginia (which is the closer adult-use cross-border option for SC residents via I-95). Maryland is more practical for SC residents who are already traveling north for other reasons (business, family) or who specifically prefer Maryland’s broader retail network.
Why Maryland Over Virginia
Several factors may make Maryland preferable to Virginia for some SC residents:
- Operational retail: Maryland adult-use retail has been operational since July 2023; Virginia adult-use retail rollout has been slow with state-licensed retail not yet operational as of mid-2026.
- Higher possession allowance: 1.5 oz Maryland vs. 1 oz Virginia.
- Broader retail network: Maryland has more dispensaries per capita than current Virginia operations.
- Annapolis / Baltimore tourism: SC residents traveling for business or tourism in DC / Baltimore corridor may combine cannabis access with other purposes.
The I-95 Returning Corridor
The I-95 returning corridor passes through Virginia, North Carolina, and South Carolina — each with different cannabis-policy postures. Cross-border-Maryland returnees face:
- Maryland to Virginia: VA adult-use means VA state law permits possession up to 1 oz; transport across border into VA is technically a separate transport question, but enforcement is generally low-priority.
- Virginia to North Carolina: NC has limited medical (EBCI Cherokee adult-use); state-law possession exposure resumes.
- North Carolina to South Carolina: SC PWID prima facie threshold at over 1 oz; concentrate Class C felony at any weight.
Crossing into South Carolina
Bringing Maryland-purchased cannabis into South Carolina subjects the person to SC state law:
- Plant material: 1 oz first offense = misdemeanor; over 1 oz = PWID felony.
- Concentrate (vape cartridges): any weight = Class C felony.
- Federal exposure: 21 U.S.C. § 841 interstate transport felony.
- Out-of-state legal status NOT a defense.
Federal Highway Patrol Plus State-Patrol Interdiction
The longer drive distance through multiple states means cross-border-Maryland returnees face cumulative state-patrol interdiction risk: VA State Police along I-95 + NC State Patrol + SC Highway Patrol + SLED + county sheriffs. K-9 deployment is documented along all of these jurisdictions. See SC interstate interdiction page.
Practical Notes
- Plan to consume in Maryland. Do not transport product back to SC.
- Concentrates are Class C felony exposure in SC regardless of MD acquisition.
- Multi-state interstate transport compounds federal-felony exposure.
- Virginia is closer for SC residents seeking cross-border adult-use access.
- EBCI Cherokee NC is closer still for Upstate SC residents (~2 hours from Greenville).
For in-depth cannabis education, dosing guides, safety information, and research summaries, visit our partner site TryCannabis.org
Related on this site: EBCI Great Smoky Cannabis Co., SC Port + Airport Cannabis Federal Ju..., SC Cross-Border Virginia.