Federal Seed Act

The Federal Seed Act (7 U.S.C. §§ 1551–1611) ensures that when you buy seed — whether you're a farmer planting 1,000 acres of corn or a homeowner seeding your lawn — the label accurately tells you what's in the bag. Enacted in 1939 and administered by USDA's Agricultural Marketing Service, the Act requires truthful labeling of all agricultural and vegetable seeds shipped in interstate commerce, including the seed kind and variety, purity percentage, germination rate, origin, and the presence of any noxious weed seeds. It also prohibits the import of seed that fails to meet U.S. standards and bans false advertising of seed products. The Federal Seed Act protects both the farmer who depends on certified seed to produce a crop and the seed industry's reputation for quality — ensuring that American seed commerce operates on reliable information rather than guesswork.

Current Law (2026)

Legal Authority

• 7 U.S.C. § 1571 — Prohibitions relating to interstate commerce (unlawful to ship seed interstate without required labels; unlawful to ship seed with false or misleading labels; agricultural seed must show kind, variety, purity, germination, hard seed, weed seed, noxious weed content, origin, lot, and name/address of shipper)
• 7 U.S.C. § 1562 — Certified seed requirements (no seed may be labeled "certified" unless an official seed certifying agency has verified it meets purity and identity standards)
• 7 U.S.C. § 1575 — False advertising (unlawful to disseminate false advertising about seed through any medium; advertising agencies and media are not liable if they don't know the advertisement is false)
• 7 U.S.C. § 1581 — Import prohibitions (banned imports include seed containing noxious weed seeds, seed with false labels, and seed screenings)
• 7 U.S.C. § 1593 — Standards, tests, tolerances (Secretary sets official testing methods, reasonable tolerances for required percentages, and germination standards for each kind of seed)
• 7 U.S.C. § 1596 — Penalties (knowing or negligent violations are misdemeanors; first offense up to $1,000; subsequent offenses up to $2,000; Secretary may issue cease-and-desist orders)

How It Works

Labeling requirements are the Act's core mechanism. Every container of agricultural seed (corn, wheat, soybeans, alfalfa, grass seed, etc.) shipped in interstate commerce must carry a label showing: the kind and variety of seed; the lot number; the origin (state or country where grown); the percentage of pure seed (by weight); the germination rate (percentage of seeds that will sprout under test conditions) and the date the germination test was conducted; the percentage of weed seeds and other crop seeds; the identity and rate per pound of any noxious weed seeds present; and the name and address of the shipper. Vegetable seed has slightly different but similarly detailed requirements.

Noxious weed seed regulation is a critical function. The Act requires labels to identify the presence and rate of noxious weed seeds — species that, if introduced to a farm through contaminated seed, can become devastating and nearly impossible to eradicate. Both federal and state lists of noxious weed seeds apply. Seed containing prohibited noxious weeds above tolerance levels may not be shipped interstate or imported.

Seed certification (§ 1562) provides a higher tier of quality assurance. The Plant Variety Protection Act provides intellectual property rights for new seed varieties, working alongside the certification system. Seed labeled as "certified" must have been inspected and approved by an official seed certifying agency — typically a state agency or authorized organization that verifies genetic identity, varietal purity, and freedom from contamination through field inspection and laboratory testing. Certified seed commands a premium price because buyers can rely on its genetic purity and performance.

Import controls (§ 1581) prevent substandard or contaminated seed from entering the U.S. market. USDA inspects seed at ports of entry — samples are drawn, tested, and compared to label claims. Seed that contains noxious weed seeds, has false labels, or fails to meet U.S. germination and purity standards is refused entry, re-exported, or destroyed.

Enforcement operates through multiple mechanisms: USDA inspectors sample and test seed in interstate commerce; violations result in warning letters, cease-and-desist orders, or criminal prosecution (misdemeanor penalties); and seed may be seized and condemned if it violates the Act's requirements.

How It Affects You

If you're a farmer buying seed for planting: The Federal Seed Act label is your most important pre-purchase quality check. Before buying, review: germination rate (the percentage of seeds expected to sprout under test conditions — anything below 80% for most field crops warrants scrutiny), the date the germination test was conducted (germination declines with age; old test dates may not reflect current viability, especially for vegetable seed), purity percentage (how much of the bag is actually the seed you want versus inert matter or other crop seed), and weed seed content by identity and rate per pound. Noxious weed seed disclosure is critical — even small contamination rates for species like Palmer amaranth, waterhemp, or common ragweed can create multi-year management problems that far outweigh the cost savings of cheaper seed. Certified seed (labeled by a state certifying agency) provides the highest assurance of genetic purity and variety identity; the premium typically pays back in yield reliability for high-value crops. If you suspect a label is inaccurate after purchase and planting, USDA AMS accepts complaints and can test retained samples — keeping a portion of every seed lot until crop emergence is advisable for large purchases.

If you sell or distribute agricultural or vegetable seed: Label accuracy at time of shipment is a legal requirement — not at time of testing. USDA samples and tests seed in interstate commerce, and if your label claims 90% germination and the drawn sample tests at 78%, you're in violation regardless of what your records show. Germination tests must follow USDA-prescribed methods in 7 CFR Part 201 — commercial germination testing protocols from other sources do not satisfy the requirement. Noxious weed content must be disclosed by species name and rate per pound; failure to disclose a prohibited noxious weed is a violation even if contamination was inadvertent. False labeling is a misdemeanor: first offense up to $1,000, subsequent offenses up to $2,000, plus USDA can issue cease-and-desist orders and seize violating product. False advertising in any medium — including your website and social media — is separately prohibited. Keep records of all germination tests for 3 years (agricultural seed) or 2 years (vegetable seed); these records are subject to USDA audit.

If you're a homeowner buying lawn, garden, or wildflower seed: Even retail seed packets must meet Federal Seed Act labeling requirements — the same disclosure rules that apply to a 50-pound bag of commercial crop seed apply to a small lawn seed packet. For lawn grass seed, look for germination rate (quality turf grass seed typically tests at 85-95%), the test date (seed tested more than one growing season ago may have significantly reduced viability), and weed seed content (zero weed seed is ideal; any noxious weeds listed by name is a strong red flag). Cheap lawn seed with high weed seed percentages can introduce persistent weeds — including invasive grasses — that take years to manage out of an established lawn. For vegetable seed packets under 1 pound (most retail), the label must show either a germination rate or a "sell by" date. Packets with "sell by" dates several years past may still germinate acceptably, but actual germination testing would tell you more than the date alone.

If you import seed from outside the United States: All imported seed must meet U.S. Federal Seed Act standards for labeling, purity, and germination. USDA inspects seed at ports of entry — samples are drawn and laboratory-tested for germination rate, purity, and noxious weed content. Seed containing any prohibited noxious weed species (on the federal list at 7 CFR Part 361 administered jointly by USDA APHIS and AMS) is refused entry, re-exported, or destroyed; foreign phytosanitary certificates are required but not sufficient to guarantee entry. The import noxious weed list is distinct from — and often more restrictive than — the interstate commerce list. For seed varieties not commonly grown in the U.S., check with USDA AMS's Seed Regulatory and Testing Division early in your planning process, as some varieties may require additional review or carry restrictions not apparent from the country-of-origin documentation. Label translations must be accurate; false or misleading labeling on imported seed triggers the same penalties as domestic violations.

State Variations

The Federal Seed Act coexists with comprehensive state seed laws:

• All 50 states have their own seed labeling and testing laws
• State noxious weed seed lists may be more restrictive than the federal list
• State seed law enforcement (stop-sale orders, sampling at retail) complements federal interstate enforcement
• The Association of Official Seed Analysts (AOSA) and the Association of Official Seed Certifying Agencies (AOSCA) coordinate standards
• State law governs intrastate seed sales; the Federal Seed Act governs interstate and imported seed

Implementing Regulations

• 7 CFR Part 201 — Federal Seed Act Regulations (111 sections — the detailed labeling, testing, and tolerance standards implementing the FSA; applies to all agricultural and vegetable seed shipped in interstate or foreign commerce):

  • Seed labeling requirements — agricultural seed: kind and variety name (§ 201.10 — variety must be stated or labeled "Variety Not Stated"; hybrid designation required when any component exceeding 5% is hybrid; § 201.12a — mixtures must be labeled "mixture" with each kind identified); lot number or identifier traceable to test records; origin for alfalfa, red clover, and field corn (§ 201.14); weed seed percentage (§ 201.15 — noxious weed seeds listed by species name and rate per pound); germination rate and date of test; name and address of shipper/seller
  • Seed labeling requirements — vegetable seed: for containers over 1 lb, required information parallels agricultural seed; for packets of 1 lb or less — commonly sold to home gardeners — the label must show kind and variety, net weight, and either germination percentage with test date or a "sell by" date correlated to germination testing records (§ 201.55–201.57)
  • Hybrid labeling (§ 201.11a): seed sold as hybrid must actually be hybrid seed, and must be labeled "hybrid" on the container; "hybrid" may not appear in a variety name to imply hybrid origin where none exists; tolerance applied for off-type seed in labeled hybrid lots
  • Germination testing methods (§§ 201.61–201.77): germination must be tested using the USDA-prescribed method for each species — agar plates, blotters, sand, or other approved substrate at specified temperature and light conditions; test duration prescribed by species; seedlings evaluated per prescribed normal/abnormal seedling criteria; the commercial testing method from international seed testing associations does not substitute — only the methods in 7 CFR Part 201 satisfy the requirement
  • Tolerance tables (§§ 201.81–201.99): the FSA recognizes that perfect accuracy is impossible; tolerance tables specify the permissible deviation between a seed lot's label claim and the results found on a random sample drawn by USDA inspectors — if sample test results fall outside tolerance, the label is false; tolerances vary by analyte (purity, germination, weed seed count) and lot size; the tolerance system means that USDA must draw a sufficiently large sample to sustain a violation finding with statistical confidence
  • Noxious weed seed restrictions (§§ 201.15–201.17): seed may not be shipped into a state containing noxious weed seeds prohibited by that state's law; the label must identify prohibited noxious weeds present; "noxious weed seed" is defined by state lists plus a federal list applicable to the District of Columbia; seed violating noxious weed restrictions may be seized and condemned regardless of whether labeling was otherwise accurate

• 7 CFR Part 75 — Inspection and Certification of Quality of Agricultural and Vegetable Seeds (49 sections — AMS's voluntary Federal Seed Laboratory inspection service, distinct from mandatory Federal Seed Act labeling compliance; provides independent testing and official certification that seed lots meet labeled quality claims):

  • How to apply (§§ 75.10–75.14): applications for inspection services must be submitted in writing to the Federal Seed Laboratory, WSD, AMS, USDA, Beltsville, Maryland 20705; each application must specify the kind and quantity of seed, the tests requested, the inspection method (AOSA or ISTA rules), and the applicant's contact information; applications are officially filed on the day received; the Director may reject applications that don't follow the rules or are impractical to service; applicants can withdraw before service begins (but must pay any costs already incurred)
  • Sampling and testing methods (§§ 75.16–75.21): seed lots must be made accessible to inspectors for representative sampling; tests available include variety/type identity, germination, purity, weed seeds, disease organisms, chemical treatments, moisture content, and other special analyses, alone or in combination (§ 75.17); sampling must follow AOSA (Association of Official Seed Analysts) or ISTA (International Seed Testing Association) methods depending on which the applicant requests (§ 75.18); three types of inspection are available: lot inspection (inspector samples at the warehouse), submitted sample inspection (applicant sends a sample), and grain sample inspection (inspection of official FGIS grain samples to identify weed or crop seeds for USDA's grain inspection purposes) (§§ 75.19–75.21)
  • Inspection certificates (§§ 75.22–75.25): certificates must use a Director-approved form; no corrections, erasures, or alterations are permitted on issued certificates; both lot and submitted-sample certificates exist — a lot inspection certificate identifies the inspector who sampled and sealed the lot; the original certificate plus one copy go to the applicant, one copy is retained in the laboratory's file; if an error is found, a corrected certificate may be issued and the original recalled
  • Appeals (§§ 75.26–75.27): anyone with a financial interest in the inspection results may request an appeal inspection within 30 days of the original certificate; appeals must specify the basis for disagreement; the applicant contacts the Federal Seed Laboratory by phone or writing, then must provide written confirmation

The voluntary Federal Seed Laboratory inspection service — authorized under the Agricultural Marketing Act (7 U.S.C. § 1622) — complements the mandatory labeling requirements of the Federal Seed Act. A seed company that labels a lot "99.9% purity, 90% germination" can pay for an independent AMS test to verify those claims before a dispute arises. Buyers who need contractual assurance about seed quality may require a Part 75 inspection certificate from the Federal Seed Lab as a condition of purchase. The grain sample inspection service (§ 75.21) serves a specialized function for FGIS: federal grain inspectors who find unexpected weed seeds or off-type crop seeds in grain samples send them to the Beltsville Seed Lab for expert botanical identification — the kind of technical verification that field inspectors are not trained to provide.

Pending Legislation

No standalone Federal Seed Act reform bills have been introduced in the 119th Congress. Related agricultural regulation provisions appear in broader legislation — see Agricultural Subsidies.

Recent Developments

The growth of genetically engineered (GE) seed has raised questions about adventitious presence (trace contamination of non-GE seed lots with GE material) and the interaction between seed certification standards and biotechnology regulation. Organic seed sourcing requirements under the National Organic Program have increased demand for certified organic seed — which must meet both Federal Seed Act labeling requirements and organic certification standards. Seed fraud (mislabeling seed variety to command higher prices) remains an enforcement concern, particularly for high-value specialty crop seed. Climate adaptation has driven interest in regionally adapted seed varieties, increasing the importance of accurate variety labeling and germination testing.