Is THCA Legal in Delaware? What State Law Says in 2026

THCA in Delaware at a glance

Status	Legal with restrictions
Age limit	21+
Sale	Licensed retail marijuana stores may sell cannabis, including THCA-rich flower, to adults 21+; hemp shops have no state licence route.
Possession	Adults 21+ may possess up to 1 ounce of leaf marijuana, 12 g of concentrate or products containing up to 750 mg of delta-9 THC.
Product rules	Hemp is defined as 0.3% delta-9 THC or less by dry weight; from 21 October 2026 the Marijuana Control Act adds a total THC formula counting THCA (0.877 x THCA plus THC).
Licensing	The Office of the Marijuana Commissioner licenses retail marijuana stores; no hemp retail licence exists.
Key law	4 Del. C. ch. 13 (Delaware Marijuana Control Act); 16 Del. C. § 4701(28), (36); 3 Del. C. § 2801
Last major change	1 August 2025

What Delaware law says about THCA

Delaware legalised adult-use marijuana under the Delaware Marijuana Control Act, and licensed retail stores began selling to adults 21 and over on 1 August 2025.¹ Adults may possess a personal use quantity: up to one ounce of leaf marijuana, 12 grams of concentrate, or products containing up to 750 mg of delta-9 THC.²³ High-THCA flower bought from a licensed store is simply regulated cannabis.

Outside dispensaries the position is less clear. Delaware defines industrial hemp by its delta-9 THC concentration (0.3% or less on a dry-weight basis) and does not mention THCA, so the text does not expressly capture raw THCA flower.⁴ However, the Marijuana Control Act protects the sale of marijuana only by licensed businesses, so flower that is not hemp cannot lawfully be sold elsewhere.

HB 373, effective 21 October 2026, adds a total THC definition to the Marijuana Control Act that counts THCA (0.877 times THCA plus THC), and states that the Act does not restrict non-beverage hemp products that comply with federal and state hemp law.⁵

Local rules

SB 75 (enacted over a veto, effective 1 July 2026) sets statewide standards for county zoning and licensing restrictions on retail marijuana stores.

Pending changes to watch

HB 373 provisions, including the total THC definition, take effect on 21 October 2026.

How the federal hemp change affects Delaware

Separate from Delaware law, the federal definition of hemp is changing. Under the federal hemp redefinition passed in the FY2026 appropriations law, from 11 December 2026 hemp is measured by total THC, which counts THCA as well as delta-9 THC, and finished products are capped at 0.4 mg of total THC per container. High-THCA flower sold as hemp today will not meet that definition, so from that date it is treated as marijuana under federal law, whatever state law says.

Bills to delay or repeal the change are in congressional committees, but none had advanced as of September 2026. Our explainer on the federal hemp THC limit covers the detail, and THCA vs delta-9 THC explains why heat turns THCA into delta-9.

Timeline of recent changes

• 23 July 2026: HB 373 signed, adding total THC and infused beverage rules from 21 October 2026.
• 1 July 2026: SB 75 county standards for marijuana retailers take effect.
• 1 August 2025: Adult-use sales begin at licensed stores.

THCA in neighbouring states

Rules change at the state line. Here is how THCA is treated in the states bordering Delaware, as of September 2026:

• Maryland: Dispensary only, 21+
• Pennsylvania: Grey area, no state rules
• New Jersey: Dispensaries only, 21+

Carrying products across state lines can break the law of the state you enter, and federal law also applies. Check the destination state’s rules first.

Delta-8 in Delaware

Delta-8 is treated differently: in Delaware it is Unclear; not expressly regulated as of September 2026. Read our guide to Delta-8 law in Delaware, or compare the two compounds in THCA vs Delta-8.

Frequently asked questions

Is THCA flower legal in Delaware?

Adults 21 and over can legally buy cannabis flower, including high-THCA strains, from licensed retail marijuana stores and possess up to one ounce. Hemp-labelled THCA flower sold in unlicensed shops is in a legal grey area and is not tested under the state cannabis system.

How much cannabis can you possess in Delaware?

Adults 21 and over may possess a personal use quantity: up to one ounce of leaf marijuana, up to 12 grams of concentrated cannabis, or cannabis products containing up to 750 mg of delta-9 THC.

Does Delaware count THCA as THC?

Delaware’s hemp definition refers only to delta-9 THC. From 21 October 2026, the Marijuana Control Act adds a total THC measure that counts THCA as 0.877 times its weight plus delta-9 THC, mainly for regulated products.

Sources

1. State of Delaware News. Delaware Launches Legal Adult-Use Cannabis Sales Today (1 August 2025). news.delaware.gov
2. Delaware Office of the Marijuana Commissioner. Frequently Asked Questions. omc.delaware.gov
3. State of Delaware. Delaware Code Title 16, Chapter 47, Subchapter I (§ 4701, definitions of marijuana and personal use quantity). delcode.delaware.gov
4. State of Delaware. Delaware Code Title 3, Chapter 28, Industrial Hemp (§ 2801). delcode.delaware.gov
5. State of Delaware. Delaware Code Title 4, Chapter 13, Subchapter I, Delaware Marijuana Control Act (including §§ 1302, 1309A and 1313A as amended by 85 Del. Laws c. 394, effective 21 October 2026). delcode.delaware.gov
6. Delaware Office of the Marijuana Commissioner. OMC Legislative Updates: 153rd General Assembly (16 July 2026). news.delaware.gov

Editorial note: This page is general legal information, not legal advice, and reflects our reading of Delaware and federal law as of 24 September 2026. Hemp and cannabis laws change quickly and are enforced differently by different agencies and localities. If you sell, ship or carry these products, check the current rules with the relevant state agency or a licensed attorney.

See the full state-by-state THCA table →