Is THCA Legal in South Carolina? State Law and the December 11 Federal Change
Is THCA legal in South Carolina? For now, South Carolina has no state law that bans THCA or sets rules for hemp THC products. Two 2026 bills that would have restricted them failed, so THCA products remain on store shelves.
That window is short. On December 11, 2026, a new federal hemp definition counts THCA toward the 0.3% THC limit and caps finished products at 0.4 mg of total THC per container. Most THCA products will fall outside federal hemp at that point, whatever South Carolina does. For a state-by-state view, see our 50-state THCA guide.
Status as of October 12, 2026: South Carolina has no hemp THC statute in force. H. 3924 failed on June 25, 2026, when the House rejected the conference report 28 to 69, and H. 4758 was recommitted to House Judiciary on April 23, 2026. Federal total THC limits under Pub. L. 119-37, Section 781, take effect December 11, 2026.
Is THCA legal in South Carolina right now?
Yes, in the sense that no South Carolina law currently prohibits THCA hemp products or regulates who may buy them. Reporting from June 2026 noted that hemp THC products remain legal for buyers of any age in the state. That status depends on federal hemp law, which changes on December 11, 2026.
Being unregulated at the state level does not make a product safe from enforcement. A product that tests above the hemp limit is not hemp, and South Carolina’s Hemp Farming Act says it does not authorize anyone to violate federal or state law.
What South Carolina law says about hemp and THCA
South Carolina’s hemp rules sit in the Hemp Farming Act, Title 46, Chapter 55 of the South Carolina Code. Section 46-55-10 defines hemp to include the plant’s “acids,” with a delta-9 THC concentration of no more than 0.3% on a dry weight basis.
The state definition is written around delta-9 THC, not total THC. Section 46-55-30 also says the chapter does not apply to the sale of hemp products and extracts. In practice, that left retail THCA sales without a state rulebook.
The 2026 bills that failed
Lawmakers spent most of the 2026 session on two competing approaches:
- H. 4758 (ban). Would have prohibited consumable hemp products containing THC, listed tetrahydrocannabinolic acid among intoxicating hemp products, and banned direct shipment into the state. After months of adjourned debate, it was recommitted to House Judiciary on April 23, 2026.
- H. 3924 (regulate). A conference version would have set a minimum age of 21, capped milligram limits, banned synthetic THC and required lab testing. The Senate adopted it 27 to 11 on June 25, 2026. The House rejected it 28 to 69 the same day.
Neither bill became law in 2026.
Why is THCA getting banned?
THCA is being restricted because federal law is changing how hemp is measured. Under the 2018 farm bill, only delta-9 THC counted toward the 0.3% limit, so high-THCA flower could pass. Section 781 of Pub. L. 119-37 adds THCA to the count from December 11, 2026.
What changes on December 11, 2026 under the federal hemp definition?
From December 11, 2026, federal hemp must contain no more than 0.3% total THC, including THCA, on a dry weight basis. Final hemp-derived products may hold no more than 0.4 mg of total THC per container. Anything above those limits is no longer hemp under federal law.
The change was enacted in Section 781 of Division B of Pub. L. 119-37, signed November 12, 2025, with an original start date of November 12, 2026. H.R. 6500, signed September 2, 2026, pushed most of it to December 11.
Cannabinoids synthesized outside the plant, or ones the plant cannot naturally produce, lose hemp status earlier, on November 12, 2026. The Congressional Research Service notes that excluded products are treated as marijuana under the Controlled Substances Act.
| Question | South Carolina law today | Federal law from December 11, 2026 |
|---|---|---|
| Which THC counts? | Delta-9 THC (Section 46-55-10) | Total THC, including THCA |
| Plant limit | 0.3% delta-9 THC, dry weight | 0.3% total THC, dry weight |
| Finished product limit | None set by state | 0.4 mg total THC per container |
| Minimum buyer age | None set by state | None set by Section 781 |
| Direct shipping | No state ban (H. 4758 did not pass) | Only products that meet the hemp definition |
How total THC is counted (THCA x 0.877 plus delta-9)
Total THC is THCA multiplied by 0.877, plus delta-9 THC. The factor accounts for the mass THCA loses when heat converts it to delta-9 THC. USDA’s hemp rule at 7 CFR 990.1 sets out this formula for testing methods that do not decarboxylate the sample.
Take a flower lot labeled 22% THCA and 0.2% delta-9 THC. Total THC is (22 x 0.877) + 0.2, which is about 19.49%. Under South Carolina’s delta-9 wording that lot reads as 0.2%; under federal law from December 11 it reads as 19.49%.
That gap is the whole story of THCA in South Carolina. Our explainer on THCA vs THC flower covers why the two compounds are treated differently.
Can THCA be shipped to South Carolina?
South Carolina has no state law banning direct shipment of hemp products, because H. 4758, which included a shipping ban, did not pass. Federal rules still apply. From December 11, 2026, products over the federal total THC limits are not hemp, and carriers allow hemp only when it complies with law.
USPS Publication 52, Section 453.37, permits domestic mailing of hemp products only when the mailer complies with all federal, state and local laws. It also requires the mailer to keep compliance records, such as lab results, for at least three years.
What happens to products bought before the change?
Section 781 has no exception for products bought before December 11, 2026. A product’s legal status depends on what it contains on the date in question, not on when it was purchased. South Carolina has not passed any transition rule of its own.
Where to check for updates
- The South Carolina Legislature site (scstatehouse.gov) for new hemp bills and status pages for H. 3924 and H. 4758.
- Congress.gov for any federal bill that changes the December 11, 2026 date. Bills such as H.R. 7024 propose further delay but have not passed.
- Neighboring state rules, which differ. See our guide to THCA law in North Carolina.
For readers who want a neutral overview of the product category, ELYXR lists its THCA products collection, intended for adults 21 and over and subject to the federal change above.
Frequently Asked Questions
Is THCA legal in SC for people under 21?
South Carolina sets no minimum age for hemp THC products today. H. 3924 would have set the age at 21, but it failed on June 25, 2026. Products discussed here are intended for adults 21 and over.
What states banned THCA?
Several states restrict THCA or smokable hemp, and the list changes often. Alabama, for example, bans smokable hemp outright. From December 11, 2026, the federal total THC rule applies in every state.
Can I get in trouble for having THCA in South Carolina?
No state statute specifically targets THCA possession today. Products that exceed the hemp limits, measured by total THC from December 11, 2026, are not hemp. Ask a South Carolina attorney about any specific situation.
Does THCA show up on a drug test?
Urine screens look for a THC metabolite, not a specific product. Federal workplace rules at 49 CFR 40.85 use a 50 ng/mL initial cutoff. See does THCA stay in your system.
South Carolina’s hemp rules are unsettled, and the federal date matters more than anything in state law right now. Check the latest status before you act. This article is general information, not legal advice.
Sources
- H. 3924, Hemp-derived ingestible, South Carolina Legislature
- H. 3924 conference report vote, June 25, 2026, South Carolina House
- H. 4758, Hemp beverage ban, South Carolina Legislature
- South Carolina Code Title 46, Chapter 55, Hemp Farming Act
- Public Law 119-37, Division B, Section 781, GovInfo
- Congressional Bill H.R. 6500 Signed into Law, The White House, September 2, 2026
- Changes to the Statutory Definition of Hemp, Congressional Research Service, September 28, 2026
- 7 CFR 990.1, Definitions (Total THC), eCFR
- THC hemp products remain legal for all in SC after efforts to limit sales fails, SC Daily Gazette
- South Carolina House rejects Senate compromise on hemp-based THC regulations, ABC News 4, June 25, 2026
- USPS Publication 52, Section 453.37 Hemp-Based Products
