Is THCA Legal in South Dakota? (2026 Update)
May 22, 2026
THCA is restricted in South Dakota. HB 1125 bans chemically converted cannabinoids and post-decarb total THC above 0.3% is treated as marijuana. Enforcement active.
THCA is restricted in South Dakota. HB 1125 bans chemically converted cannabinoids and post-decarb total THC above 0.3% is treated as marijuana. Enforcement active.
THCA sits in a gray zone in South Dakota. The compound is not listed by name in state controlled-substance statutes, but the state's hemp framework was tightened by HB 1125 in 2024, and Attorney General Marty Jackley has aligned enforcement with a post-decarboxylation reading of total THC. Smokable THCA flower that converts to delta-9 above 0.3% on heating is the highest-risk category. Active retail compliance sweeps began July 14, 2025.
Effective enforcement date for the underlying chemical-conversion ban: July 1, 2024 (HB 1125). Federal H.R. 5371 §781, signed November 12, 2025, will further restrict hemp products to 0.4 milligrams total THC per container effective November 12, 2026.
Restricted
HB 1125 (2024); SDCL Chapter 38-35; SDCL Chapter 34-20B
0.3% total THC by dry weight (hemp definition); naturally derived only; no chemical catalyst permitted
Yes
