Hemp THC Compliance and Enforcement: Federal Limits, Testing, and Penalties

Executive Summary

Federal enforcement of hemp THC limits has intensified dramatically in 2026, with U.S. Customs and Border Protection implementing stricter testing protocols that have delayed thousands of import shipments and exposed widespread non-compliance with the 0.3% delta-9 THC threshold established by the 2018 Farm Bill. Recent enforcement actions reveal that many hemp-derived products entering the United States contain THC concentrations exceeding federal limits, triggering seizures, administrative holds, and potential criminal referrals. The crackdown affects importers relying on Brazil's RDC 660 regulatory framework and other international hemp programs, creating supply chain disruptions worth tens of millions of dollars. This enforcement wave represents the most significant federal action on hemp compliance since the Agricultural Improvement Act of 2018 legalized hemp cultivation, signaling that regulatory tolerance for gray-market intoxicating hemp products has ended. Stakeholders across the hemp industry—from farmers and processors to retailers and consumers—now face a compliance landscape requiring rigorous testing, documentation, and quality control to avoid civil penalties, product destruction, and criminal liability.

Why Hemp THC Compliance Matters

The distinction between legal hemp and illegal cannabis hinges entirely on THC concentration, making compliance the existential issue for a $28 billion U.S. hemp industry that employs more than 300,000 workers. Federal law under 7 U.S.C. § 1639o defines hemp as cannabis containing no more than 0.3% delta-9 tetrahydrocannabinol on a dry weight basis. Products exceeding this threshold constitute marijuana under the Controlled Substances Act, subjecting manufacturers, distributors, and retailers to felony prosecution under 21 U.S.C. § 841. The stakes extend beyond criminal liability: non-compliant hemp loses its exemption from DEA scheduling, triggering immediate seizure authority and potential forfeiture of entire product inventories. The enforcement intensification affects multiple stakeholder groups. Hemp farmers face crop destruction if post-harvest testing reveals THC levels above 0.3%, representing total loss on investments averaging $35,000 per acre for high-value CBD cultivation. Processors and manufacturers risk losing FDA registration and state licenses if finished products test hot. Retailers selling non-compliant hemp products face strict liability in many jurisdictions, with civil penalties reaching $50,000 per violation in states like California and New York. Consumers represent the largest affected population. Approximately 68 million Americans used CBD products in 2025 according to industry surveys, with most assuming legal compliance. Non-compliant products expose users to potential criminal possession charges in states without legal cannabis programs, employment consequences from failed drug tests, and health risks from untested or mislabeled formulations. The international trade dimension adds complexity. The United States imported $4.2 billion in hemp products during 2025, with Brazil, Canada, and China representing the largest source countries. Customs enforcement now subjects these imports to enhanced scrutiny, creating bottlenecks at ports of entry and forcing importers to provide certified lab results from DEA-registered laboratories.

Background and History of Hemp THC Regulation

The modern hemp compliance framework emerged from a century of cannabis prohibition, with the critical 0.3% THC threshold originating from a 1976 taxonomic study never intended as a regulatory standard.

The Marihuana Tax Act and Total Prohibition (1937-2018)

Federal cannabis regulation began with the Marihuana Tax Act of 1937, which imposed prohibitive taxes on all cannabis cultivation and transfer. The Controlled Substances Act of 1970 consolidated prohibition by classifying marijuana as a Schedule I controlled substance under 21 U.S.C. § 812, defining it as all parts of the plant Cannabis sativa L. with no exception for low-THC varieties. This classification remained unchanged for 48 years, making all cannabis cultivation and possession federally illegal regardless of THC content. The 0.3% threshold entered regulatory discussion through a 1976 study by Canadian plant taxonomists Ernest Small and Arthur Cronquist, who proposed the concentration as an arbitrary dividing line between fiber/seed varieties and drug varieties for botanical classification purposes. The authors explicitly noted the threshold had no scientific basis for determining psychoactivity or appropriate regulatory treatment.

State Hemp Pilot Programs (2014-2018)

The Agricultural Act of 2014 created the first federal hemp exception in Section 7606, authorizing state departments of agriculture and higher education institutions to establish hemp research pilot programs. The provision defined hemp using the 0.3% delta-9 THC threshold, importing the taxonomic standard into federal law for the first time. By 2018, 41 states had established pilot programs cultivating approximately 78,000 acres of hemp. These pilot programs operated in legal gray area. The DEA maintained that hemp remained a Schedule I controlled substance requiring registration under 21 C.F.R. § 1301, while state agriculture departments treated it as an exempt agricultural commodity. The conflict created compliance uncertainty, with some hemp shipments seized during interstate transport despite state-issued certificates of analysis.

The 2018 Farm Bill and Federal Legalization

The Agricultural Improvement Act of 2018, signed December 20, 2018, removed hemp from Schedule I by amending the Controlled Substances Act definition of marijuana to exclude cannabis containing 0.3% or less delta-9 THC. Section 10113 of the Farm Bill established hemp as an agricultural commodity under USDA jurisdiction, explicitly legalizing cultivation, processing, and interstate commerce. The Farm Bill required USDA to establish a regulatory framework within one year. USDA published the U.S. Domestic Hemp Production Program as an interim final rule on October 31, 2019, establishing testing, sampling, and disposal requirements. The rule mandated testing within 15 days of anticipated harvest using DEA-registered laboratories, with samples collected from the top one-third of plants where THC concentrates most heavily.

The Intoxicating Hemp Loophole (2019-2024)

The Farm Bill's focus on delta-9 THC created an unintended regulatory gap. Manufacturers discovered that delta-8 THC, delta-10 THC, THC-O, THCP, and other psychoactive cannabinoids could be synthesized from legal CBD through chemical conversion. These semi-synthetic cannabinoids produced intoxicating effects comparable to delta-9 THC but remained technically legal under the Farm Bill's narrow definition. The intoxicating hemp market exploded from essentially zero in 2019 to $28 billion in retail sales by 2024. Gas stations, smoke shops, and online retailers sold products marketed as legal alternatives to marijuana, including high-potency vapes, edibles, and concentrates. States responded inconsistently: 14 states banned all intoxicating hemp products by 2024, while others imposed age restrictions or labeling requirements. Federal agencies issued conflicting guidance. The DEA published an interim final rule in August 2020 stating that synthetically derived THC remained Schedule I controlled substances, but provided no enforcement mechanism. The FDA sent warning letters to companies making therapeutic claims but took no action against intoxicating products sold for recreational use. USDA maintained its jurisdiction extended only to cultivation, not finished products.

Enforcement Escalation (2025-2026)

Federal enforcement posture shifted dramatically in 2025. The DEA published a notice of proposed rulemaking in March 2025 proposing to classify all psychoactive cannabinoids as controlled substance analogues under 21 U.S.C. § 813. The FDA announced in June 2025 that it would treat all intoxicating hemp products as unapproved drugs subject to seizure under 21 U.S.C. § 331. Customs and Border Protection implemented enhanced testing protocols in January 2026, requiring importers to provide certified lab results for all hemp shipments. The agency deployed portable THC testing devices at major ports of entry and established a dedicated Hemp Import Compliance Unit. By August 2026, CBP had detained more than 12,000 shipments for THC testing, with approximately 38% testing above the 0.3% threshold and subject to seizure.

Key Players in Hemp THC Compliance

U.S. Customs and Border Protection

CBP serves as the primary enforcement agency for hemp imports, with authority to detain, test, and seize shipments suspected of exceeding THC limits. The agency operates under 19 U.S.C. § 1595a, which authorizes seizure of controlled substances and merchandise imported contrary to law. CBP's Hemp Import Compliance Unit, established in January 2026, employs 47 agricultural specialists trained in cannabis testing and identification. The agency's enforcement authority extends beyond simple detention. CBP can issue civil penalties up to $10,000 per violation under 19 U.S.C. § 1592 for negligent importation of non-compliant hemp, and up to $100,000 for intentional violations. The agency also maintains criminal referral authority to DEA and Department of Justice for shipments significantly exceeding THC limits.

Drug Enforcement Administration

The DEA retains jurisdiction over all cannabis exceeding 0.3% delta-9 THC under its Controlled Substances Act authority. The agency's Diversion Control Division registers laboratories authorized to test hemp under 21 C.F.R. § 1301.13, maintaining quality standards for compliance testing. As of August 2026, 312 DEA-registered laboratories operate nationwide, charging $150 to $400 per sample for certified THC analysis. DEA enforcement priorities shifted in 2025 to target large-scale manufacturers of intoxicating hemp products. The agency executed 23 search warrants against hemp processors between January and July 2026, seizing manufacturing equipment, finished products, and business records. Criminal charges filed in these cases typically allege conspiracy to manufacture and distribute controlled substances under 21 U.S.C. § 846.

Food and Drug Administration

The FDA regulates hemp-derived products under the Federal Food, Drug, and Cosmetic Act, with authority over safety, labeling, and therapeutic claims. The agency maintains that CBD and other cannabinoids cannot be added to food or marketed as dietary supplements without FDA approval, creating a separate compliance obligation beyond THC limits. FDA enforcement actions have focused on misbranded products making disease treatment claims and products containing undisclosed THC. The agency issued 47 warning letters to hemp companies in 2025, primarily targeting CBD products claiming to treat cancer, opioid addiction, or COVID-19. The FDA also announced in June 2025 that it would begin testing hemp products for total THC content, not just delta-9 THC, potentially capturing THCA and other precursors.

U.S. Department of Agriculture

USDA oversees domestic hemp cultivation through state and tribal regulatory plans approved under 7 C.F.R. § 990. The department's Agricultural Marketing Service reviews state testing protocols, sampling procedures, and disposal requirements to ensure compliance with the 0.3% threshold. As of August 2026, USDA had approved 73 state and tribal plans covering hemp cultivation in 48 states. The department faces ongoing criticism for testing requirements that industry groups claim result in excessive crop destruction. USDA rules require testing the top third of plants 15 days before harvest, the period when THC peaks. Industry data suggests 15-20% of compliant hemp crops test hot under this protocol due to natural variation and environmental stress factors.

Hemp Industry Stakeholders

The U.S. Hemp Roundtable represents major hemp businesses and trade associations, advocating for regulatory clarity and enforcement consistency. The organization has called for raising the THC threshold to 1% total THC and extending the testing window to 30 days before harvest. The Roundtable estimates current enforcement actions have cost the industry $340 million in detained shipments and destroyed inventory during 2026. The Hemp Industries Association focuses on fiber and grain producers, supporting strict THC enforcement to distinguish industrial hemp from intoxicating products. The organization has petitioned FDA to establish clear regulatory pathways for hemp foods and cosmetics separate from the CBD supplement debate. Individual companies face varying compliance challenges. Large multi-state operators like Charlotte's Web and cbdMD maintain extensive testing programs and vertical integration to control THC levels. Smaller processors and retailers often lack resources for comprehensive testing, relying on supplier certificates of analysis that recent enforcement actions have revealed as frequently inaccurate.

Legal and Regulatory Framework

Hemp THC compliance operates at the intersection of agricultural law, controlled substances regulation, food and drug law, and international trade rules, creating a complex multi-agency framework with overlapping and sometimes contradictory requirements. The foundational statute remains the Agricultural Improvement Act of 2018, codified at 7 U.S.C. § 1639o through § 1639s. Section 1639o(1) defines hemp as "the plant Cannabis sativa L. and any part of that plant, including the seeds thereof and all derivatives, extracts, cannabinoids, isomers, acids, salts, and salts of isomers, whether growing or not, with a delta-9 tetrahydrocannabinol concentration of not more than 0.3 percent on a dry weight basis." This definition controls across all federal agencies. The Controlled Substances Act at 21 U.S.C. § 802(16) was amended to exclude hemp from the definition of marijuana, but only for cannabis meeting the 0.3% threshold. Cannabis exceeding this limit remains a Schedule I controlled substance under 21 U.S.C. § 812(c), subject to criminal penalties under 21 U.S.C. § 841. First-time possession charges carry up to one year imprisonment and $1,000 fines, while manufacturing and distribution charges carry five to 40 years depending on quantity. USDA regulations at 7 C.F.R. Part 990 establish the testing framework. Section 990.3(a)(2) requires performance-based measurement of uncertainty, meaning laboratories must account for potential variation in test results. The rule specifies that hemp testing above 0.5% total THC must be destroyed, while crops testing between 0.3% and 0.5% receive a measurement of uncertainty pass if the lower confidence interval falls below 0.3%. This creates a practical threshold of approximately 0.35% for most testing laboratories. DEA regulations at 21 C.F.R. § 1301.13 govern laboratory registration. Testing facilities must obtain DEA registration, maintain security requirements, and follow Good Laboratory Practice standards under 21 C.F.R. Part 58. The agency published guidance in May 2021 clarifying that laboratories testing hemp for compliance purposes must register as analytical laboratories, not as handlers of controlled substances, simplifying the registration process. FDA authority derives from 21 U.S.C. § 331, which prohibits introduction of adulterated or misbranded food and drugs into interstate commerce. The agency maintains that CBD and other cannabinoids are excluded from the dietary supplement definition under 21 U.S.C. § 321(ff)(3)(B) because they were investigated as drugs before being marketed as supplements. This position remains controversial and subject to ongoing litigation. International trade compliance requires adherence to the Harmonized Tariff Schedule classification for hemp products. CBP classifies hemp under HTS 5305.00.00 for fiber and 1207.99.03 for seeds, with duty-free treatment under most-favored-nation rates. However, shipments must include phytosanitary certificates, certificates of analysis showing THC compliance, and country-of-origin documentation. The Trade Facilitation and Trade Enforcement Act at 19 U.S.C. § 4301 authorizes CBP to require additional documentation for high-risk agricultural products. State laws add another compliance layer. States retain authority to prohibit or regulate hemp more strictly than federal law under the Tenth Amendment. Idaho, for example, prohibits all cannabis including hemp with any detectable THC. South Dakota requires state-issued licenses for hemp cultivation despite federal legalization. These state restrictions create compliance challenges for interstate commerce, as shipments legal under federal law may violate state law during transport.

State-by-State Hemp THC Enforcement

Hemp compliance requirements vary dramatically across states, with some maintaining prohibition, others adopting federal standards, and several imposing stricter testing or lower THC thresholds.

California

California operates a dual hemp regulatory system under the Department of Food and Agriculture for cultivation and the Department of Public Health for manufactured products. The state adopted the 0.3% delta-9 THC threshold but added total THC testing requirements for finished products. Assembly Bill 45, effective January 2026, banned all intoxicating hemp products and established a civil penalty structure reaching $50,000 per violation. The state destroyed approximately $180 million in non-compliant hemp inventory during the first six months of 2026.

Colorado

Colorado pioneered hemp regulation through its pilot program beginning in 2014. The state maintains one of the most sophisticated testing frameworks, requiring accreditation under ISO/IEC 17025 for all hemp testing laboratories. Colorado allows the federal 0.3% delta-9 THC limit but requires total THC disclosure on all product labels. The state has not banned intoxicating hemp products, instead regulating them similarly to marijuana with age restrictions and retail licensing requirements.

Florida

Florida prohibits all intoxicating hemp products under legislation enacted in May 2025. The state defines intoxicating hemp as any product containing more than 0.3% total THC or marketed for intoxicating effects. Florida law enforcement has aggressively enforced these provisions, with more than 400 arrests for hemp-related violations during 2025. The state requires all hemp products to carry QR codes linking to third-party lab results.

Idaho

Idaho remains the only state maintaining complete hemp prohibition. State law defines marijuana to include all cannabis regardless of THC content, creating direct conflict with federal hemp legalization. Idaho State Police continue to seize hemp shipments during interstate transport, leading to ongoing litigation over federal preemption. The U.S. Court of Appeals for the Ninth Circuit ruled in Big Sky Scientific v. Idaho State Police that states cannot prohibit interstate transport of federally legal hemp, but Idaho has not amended its enforcement practices.

Kentucky

Kentucky established one of the earliest hemp pilot programs in 2014 and has maintained farmer-friendly regulations. The state allows the federal 0.3% threshold with a 30-day testing window, longer than the federal 15-day requirement. Kentucky does not regulate finished hemp products, creating a haven for intoxicating hemp manufacturers. The state cultivated 32,000 acres of hemp in 2025, second only to Montana.

New York

New York enacted comprehensive hemp regulations in 2021 under the Cannabis Law. The state requires all hemp processors to obtain licenses from the Office of Cannabis Management and all products to undergo testing for potency, pesticides, heavy metals, and microbials. New York banned intoxicating hemp products in March 2025, defining them as any hemp product containing more than 0.3% total THC or designed for inhalation. Civil penalties reach $10,000 per violation.

Oregon

Oregon operates separate regulatory tracks for hemp and marijuana, with hemp overseen by the Department of Agriculture. The state adopted federal THC limits but requires total cannabinoid testing. Oregon has not banned intoxicating hemp products, instead requiring them to carry warnings that they may cause impairment. The state's laboratory accreditation program is considered the national gold standard, with 23 accredited hemp testing facilities.

Texas

Texas legalized hemp in 2019 but created enforcement confusion by failing to fund laboratory testing for law enforcement. Police cannot reliably distinguish legal hemp from illegal marijuana without laboratory analysis, leading many jurisdictions to decline prosecution of low-level cannabis possession. Texas banned delta-8 THC and other intoxicating cannabinoids in October 2021, but enforcement remains inconsistent. The state cultivated 18,000 acres of hemp in 2025.

Market and Business Implications

Intensified hemp THC enforcement has created immediate supply chain disruptions, forced business model pivots, and accelerated industry consolidation while opening opportunities for compliant operators. The import detention crisis has hit small and mid-size hemp businesses hardest. Companies relying on imported hemp biomass or finished products face inventory shortages, with some reporting 60-90 day delays in shipment releases. The uncertainty has driven spot prices for compliant domestic hemp biomass from $320 per pound in January 2026 to $580 per pound in August 2026, a 81% increase that has compressed margins for manufacturers. Larger multi-state operators with vertical integration have gained competitive advantage. Companies controlling cultivation, processing, and retail distribution can ensure compliance at each stage and avoid import risks. This dynamic has accelerated merger and acquisition activity, with 47 hemp company acquisitions announced in the first seven months of 2026 compared to 23 in all of 2025. Transaction multiples have compressed to 2-3x revenue for companies with compliance issues versus 6-8x for operators with demonstrated testing protocols. The intoxicating hemp segment faces existential pressure. Retailers selling delta-8 THC, THCA, and similar products have seen revenues decline 67% year-over-year as state bans proliferate and federal enforcement intensifies. Major retailers including Circle K and 7-Eleven removed all intoxicating hemp products from their approximately 15,000 combined U.S. locations in June 2026. The category generated $28 billion in 2024 sales but is projected to decline to $8 billion in 2026. Traditional CBD and wellness hemp products have benefited from the enforcement crackdown. Consumer trust in legal hemp has increased as regulatory clarity improves, with CBD product sales growing 23% in the first half of 2026. Premium brands emphasizing third-party testing and compliance documentation have captured market share from cheaper products with questionable sourcing. Investment capital has shifted toward compliance infrastructure. Venture funding for hemp testing laboratories reached $340 million in 2025-2026, compared to $87 million in the previous two years. Laboratory chains including Kaycha Labs and SC Labs have expanded to multiple states, offering standardized testing protocols and faster turnaround times. Testing costs have declined from $400 per sample in 2020 to approximately $150 in 2026 due to increased competition and automation. The enforcement environment has created opportunities in compliance consulting and insurance. Specialized law firms and consultants advising on hemp regulations reported 340% revenue growth in 2025. Insurance carriers have introduced hemp-specific product liability and regulatory compliance policies, with premiums ranging from $8,000 to $45,000 annually depending on revenue and product categories. International trade patterns are shifting. U.S. importers are diversifying away from high-risk source countries toward suppliers in Canada and the European Union with established testing frameworks. Canadian hemp exports to the United States increased 89% in the first half of 2026, while imports from China declined 34%. This shift has raised costs, as Canadian hemp biomass trades at a 40% premium to Chinese material.

What Experts Say

Industry leaders, regulators, and legal experts describe the current enforcement environment as a necessary correction that will ultimately strengthen the legal hemp industry while eliminating bad actors. Jonathan Miller, general counsel for the U.S. Hemp Roundtable, said the organization supports rigorous THC enforcement but believes the 0.3% threshold is scientifically arbitrary and should be raised to 1% total THC to account for natural variation and testing uncertainty. According to Miller, the current standard results in destruction of compliant crops due to environmental factors beyond farmer control. Shawn Hauser, partner at Vicente Sederberg LLP and chair of the firm's hemp practice, said importers must recognize that CBP enforcement represents a permanent shift rather than a temporary crackdown. Hauser advises clients to establish direct relationships with DEA-registered laboratories in source countries and obtain certificates of analysis before shipping rather than relying on supplier documentation. Dr. Jahan Marcu, chief scientific officer at the International Research Center on Cannabis and Mental Health, said the focus on delta-9 THC alone is outdated given scientific understanding of total THC and THCA conversion. According to Marcu, regulators should adopt total THC testing that accounts for THCA decarboxylation, as this better reflects actual psychoactive potential. Rod Kight, a North Carolina attorney specializing in hemp law, said the intoxicating hemp market exploited a loophole that was never intended by Congress when it legalized hemp. Kight said federal enforcement against these products is legally sound and necessary to preserve the integrity of the Farm Bill's hemp provisions. Steve Morrow, president and CEO of the Hemp Industries Association, said fiber and grain hemp producers welcome strict THC enforcement because it distinguishes their agricultural products from intoxicating substances. According to Morrow, the association has advocated for separate regulatory pathways for industrial hemp and CBD products to avoid conflating distinct market segments. Dr. Michelle Ross, founder of IMPACT Network and a neuroscientist studying cannabinoid pharmacology, said enforcement should focus on product safety and accurate labeling rather than arbitrary THC thresholds. Ross said many consumers use hemp products specifically for their cannabinoid content and deserve access to accurately tested products regardless of THC levels. Garrett Graff, director of the Hemp Division at the Kentucky Department of Agriculture, said state regulators need clearer federal guidance on testing protocols and acceptable measurement uncertainty. According to Graff, inconsistent testing standards across states create compliance challenges for farmers and processors operating in multiple jurisdictions.

What's Next for Hemp THC Compliance

The hemp compliance landscape will continue evolving through 2027 as federal agencies finalize regulations, states implement bans on intoxicating products, and industry consolidates around compliant business models. The DEA's proposed rule classifying all psychoactive cannabinoids as controlled substance analogues remains under review following a comment period that closed in June 2025. The agency received more than 43,000 comments, primarily opposing the rule. A final rule is expected by December 2026, with implementation likely in early 2027. If finalized as proposed, the rule would criminalize delta-8 THC, THCP, and similar compounds, effectively ending the intoxicating hemp market. The FDA faces a statutory deadline under the Consolidated Appropriations Act of 2023 to issue regulations establishing a legal pathway for CBD in food and dietary supplements by December 2026. The agency has indicated it will propose a framework allowing CBD products under specific conditions, potentially including THC limits stricter than the 0.3% threshold. Industry groups expect the FDA to propose a 0.1% total THC limit for CBD products marketed as dietary supplements. USDA is developing revisions to the U.S. Domestic Hemp Production Program based on stakeholder feedback and three years of implementation experience. Proposed changes expected in late 2026 include extending the testing window from 15 to 30 days before harvest, allowing remediation of hot crops through additional drying or processing, and establishing national laboratory accreditation standards. These changes could reduce crop destruction rates and improve testing consistency. State legislative activity will accelerate in 2027 sessions. At least 18 states are expected to consider bills banning intoxicating hemp products, following the model established by California, Florida, and New York. Industry observers predict 25-30 states will have comprehensive intoxicating hemp bans by the end of 2027, effectively creating a patchwork regulatory landscape similar to marijuana legalization. The international trade dimension will require ongoing attention. The United States and Canada are negotiating a mutual recognition agreement for hemp testing laboratories that would streamline cross-border commerce. Similar discussions with European Union member states could establish standardized testing protocols for transatlantic hemp trade. These agreements would reduce import delays and compliance costs for international suppliers. Litigation will shape enforcement boundaries. Multiple lawsuits challenge state hemp bans as preempted by federal law, with cases pending in Florida, Idaho, and Texas. The outcomes will determine whether states can prohibit federally legal hemp or impose requirements stricter than federal standards. Additional litigation challenges FDA's position that CBD cannot be sold as a dietary supplement, with oral arguments scheduled in the U.S. Court of Appeals for the D.C. Circuit in October 2026. Industry consolidation will continue as compliance costs favor larger operators. Analysts project 30-40% of current hemp businesses will exit the market by the end of 2027, with surviving companies acquiring distressed assets at discounted valuations. This consolidation will likely improve overall compliance rates as professional operators with established testing protocols gain market share.

Further Reading and Primary Sources

• Agricultural Improvement Act of 2018, Public Law 115-334, full text at https://www.congress.gov/bill/115th-congress/house-bill/2
• U.S. Domestic Hemp Production Program, 7 C.F.R. Part 990, available at https://www.ecfr.gov/current/title-7/part-990
• DEA Interim Final Rule on Hemp, 85 Fed. Reg. 51639 (August 21, 2020), at https://www.federalregister.gov/documents/2020/08/21/2020-18682
• USDA Hemp Testing Guidelines and Procedures, updated July 2024, at https://www.ams.usda.gov/rules-regulations/hemp
• FDA Regulation of Cannabis and Cannabis-Derived Products, updated January 2026, at https://www.fda.gov/news-events/public-health-focus/fda-regulation-cannabis-and-cannabis-derived-products
• U.S. Customs and Border Protection Hemp Importation Guidance, CBP Publication 0000-0626, at https://www.cbp.gov/trade/basic-import-export/hemp-importation
• Controlled Substances Act, 21 U.S.C. § 801 et seq., at https://www.deadiversion.usdoj.gov/21cfr/21usc/index.html
• U.S. Hemp Roundtable Policy Positions and Advocacy, at https://www.hempsupporter.com
• National Conference of State Legislatures Hemp State Laws Database, updated monthly, at https://www.ncsl.org/agriculture-and-rural-development/state-industrial-hemp-statutes
• Vote Hemp Annual Hemp Crop Reports with state-by-state acreage and production data, at https://www.votehemp.com/hemp-crop-reports