U.S. Grain Standards Act — Federal Grain Inspection

The United States Grain Standards Act (7 U.S.C. §§ 71–87k) establishes a uniform, federally administered system for inspecting, grading, and weighing grain — the standardized language of quality that makes it possible for a buyer in Tokyo to purchase "No. 2 Yellow Corn" from a seller in Iowa with confidence that the grain meets defined specifications for moisture, test weight, damaged kernels, and foreign material. Administered by USDA's Federal Grain Inspection Service (FGIS), the Act requires mandatory inspection of all export grain and provides voluntary inspection services for domestic grain. Official U.S. grain standards cover corn, wheat, soybeans, sorghum, oats, barley, rye, flaxseed, canola, sunflower seed, and triticale — the commodities that underpin American agriculture's position as the world's largest grain exporter — stored under the Federal Warehouse Act receipt system. Grain grading intersects directly with the farm bill commodity programs that set price supports and marketing loan rates by grade.

Current Law (2026)

Legal Authority

• 7 U.S.C. § 74 — Congressional findings (grain is an important commodity in interstate and foreign commerce; official standards and inspection are essential for orderly marketing and fair dealing)
• 7 U.S.C. § 76 — Standards establishment (Secretary may investigate grain handling and establish, amend, or revoke standards for kind, class, quality, and condition of grain)
• 7 U.S.C. § 77 — Export inspection requirement (all grain shipped from the United States must be officially inspected and weighed; shipper must provide certified documentation of official grade)
• 7 U.S.C. § 78 — Use of official grade designations (sellers must use official grade names when describing grain in commerce; false or misleading grade descriptions are prohibited)
• 7 U.S.C. § 79 — Official inspection (Secretary provides official inspection of grain as required by law and on request; inspections follow official standards and Secretary's rules)
• 7 U.S.C. § 84 — Licensing of inspectors (Secretary licenses qualified individuals to inspect and weigh grain)
• 7 U.S.C. § 87 — Conflicts of interest (licensed inspectors may not have financial interests in grain elevator, warehouse, or grain trading businesses)

How It Works

Official U.S. grain standards define quality grades for each covered commodity. U.S. corn is graded from No. 1 (highest quality) through No. 5 (lowest), plus "Sample grade" for grain that fails minimum standards. Grade factors include test weight (density, measured in pounds per bushel), moisture content, damaged kernels, foreign material, and heat damage — each grain has its own set of factors and numerical breakpoints. A bushel of No. 2 Yellow Corn must have a minimum test weight of 54 pounds, maximum moisture of 14.5%, and meet limits for damaged and broken kernels. Every shipment of grain leaving the United States must be officially inspected and weighed at the export elevator, with a certificate issued documenting the official grade and weight — mandatory export inspection conducted by FGIS employees or FGIS-delegated state agencies that backs the reputation of U.S. grain in international markets, where buyers worldwide rely on FGIS certificates as the authoritative statement of grain quality. Domestic inspection is voluntary but widely used: grain merchants, processors, and farmers can request official inspection at interior elevators and processing plants, and official grades underpin trading on commodity exchanges — including the federal warehouse receipt system and the Commodity Credit Corporation loan program — with futures contracts priced by grade and delivery specifications referencing official standards.

While FGIS provides inspection directly at export elevators, much domestic inspection is performed by state agencies and private entities delegated or designated by FGIS; these agencies employ licensed inspectors who apply the same standards and follow the same procedures as FGIS employees, with FGIS maintaining oversight through supervision, review, and audit. Conflict of interest rules under § 87 ensure inspector integrity: licensed inspectors and their immediate families may not have financial interests in grain businesses — they cannot own elevator stock, trade grain, or have employment relationships with grain companies — preventing any incentive to grade grain favorably or unfavorably based on personal financial interest.

How It Affects You

If you're a grain farmer selling at harvest or into storage: Official USDA grades directly determine the base price you receive at the elevator — and the grade factors you control at harvest can meaningfully affect your income. The five major factors for corn: moisture (standard 15.5%; each point above 15% typically triggers a discount of $0.02–$0.04/bushel plus drying charges), test weight (standard 56 lbs/bu; below-standard weight triggers grade discounts), heat-damaged kernels, total damaged kernels, and broken corn and foreign material (BCFM). For soybeans: moisture (standard 13%), heat damage, total damage, and foreign material are key. Understanding these factors helps you make better decisions: harvesting at optimal moisture may avoid shrink and drying charges that cost more than the lost field time. For storage: grain stored at above-standard moisture is graded at delivery — if the elevator re-grades at delivery after months of storage, unexpected discounts can significantly reduce your net price. FGIS publishes official grade standards at gipsa.usda.gov.

If you're a grain elevator operator, merchandiser, or cooperative: Your business runs on the accuracy and consistency of grain grading. For export shipments, official FGIS inspection is mandatory at export port facilities — the Federal Grain Inspection Service or delegated state agency must certify grade, weight, and other contract specifications before loading. Many destination markets — particularly in Asia and the Middle East — also require a separate USDA phytosanitary certificate (APHIS 7 CFR Part 353) attesting the grain is free of plant pests; both the FGIS grade certificate and the APHIS phytosanitary certificate must be obtained before loading. For domestic commercial sales, official inspection is optional but often required by contract or commodity exchange rules. The official grade certificate provides legal protection — if a buyer disputes quality after receiving an officially certified shipment, the certificate creates a rebuttable presumption of accuracy. Monitor basis levels by grade: the spread between US No. 1 and US No. 2 often reflects regional demand for premium grain, and actively marketing US No. 1 into specialty or export channels can add $0.10–$0.40/bushel versus selling it at undifferentiated elevator price.

If you're an international grain buyer, trading company, or government food agency: FGIS certificates are the cornerstone of U.S. grain export trade integrity — a government-backed guarantee of grade, moisture, test weight, and weight at point of export. The U.S. exports approximately 50–60 million metric tons of grain annually, with FGIS-certified inspection underpinning pricing and delivery terms in virtually every export contract. For buyers concerned about aflatoxin or mycotoxin levels (a major issue for corn exported to the EU, Japan, and South Korea): FGIS certificates cover official grade factors but not mycotoxin content — that requires a separate private laboratory test or a contract requiring testing. In years of weather-related quality stress, tracking FGIS annual crop quality surveys (published pre-harvest and at harvest) is essential for supply planning and contract specification.

If you're a commodity trader, risk manager, or futures market participant: CME Group's corn and soybean futures contracts specify delivery grades — No. 2 Yellow corn at par, with premiums for No. 1 and discounts for No. 3; No. 2 Yellow soybeans at par. FGIS-certified inspection at delivery point is required when taking or making delivery on futures contracts. For traders: tracking USDA annual crop quality surveys (typically released in September-October) provides early intelligence on whether the crop will grade above or below par — a key input for basis trading and delivery logistics. In years when crop conditions produce large amounts of damaged or low-test-weight grain, cash prices for premium No. 1 grain can trade significantly above futures, while below-par grain trades at steep discounts — creating meaningful basis opportunities for traders who correctly anticipate grade quality divergence from the futures par specification.

State Variations

Federal grain standards preempt conflicting state standards for interstate and export grain:

• States may operate grain inspection programs under FGIS delegation
• State grain warehouse laws regulate storage, licensing, and bonding of grain elevators
• State weighing and measuring requirements complement federal grain weight standards
• Some states have additional grain quality requirements for specialty markets
• State departments of agriculture typically administer grain warehouse regulatory programs

Implementing Regulations

• 7 CFR Part 800 — General Regulations Under the United States Grain Standards Act (119 sections — the operational framework governing how official grain inspection and weighing services are requested, performed, certified, and appealed):
  • Definitions and mission (§§ 800.0–800.1): the FGIS mission to facilitate buying and selling of grain, oilseeds, pulses, rice, and related commodities through uniform official standards and services
  • Original inspection and weighing (§§ 800.115–800.118): anyone may request original official inspection or weighing; requests filed with the agency or FGIS field office covering the location; official certificates must be issued by authorized personnel; if the same agency or field office does both inspection and weighing on the same lot, a single combined certificate may be issued
  • Reinspection and review of weighing (§§ 800.125–800.129): any person with a financial interest may request reinspection or review of weighing results; must be filed with the same agency or field office as the original; inspectors who participated in the original inspection may not perform the reinspection (§ 800.128 — conflict-of-interest bar); only reinspection results appear on the new certificate, not the original
  • Appeal inspection (§§ 800.135–800.160): two tiers of appeal — (1) appeal to the FGIS field office for review of original or reinspection results; (2) Board appeal inspection (second level) reviewed by FGIS review staff, the highest level of official appeal; Board appeal inspection results are final and binding for grade, substandard, or factor determinations; certificates reflect only the appeal results
  • Official inspection equipment and testing (§§ 800.200–800.250): all instruments used in official grain inspection must be approved by FGIS and tested for accuracy at specified intervals; moisture meters, test weight scales, and protein analyzers must meet FGIS performance specifications (see 7 CFR Part 801 for equipment standards); FGIS field offices test equipment and maintain calibration records
  • Fees for official services (§§ 800.70–800.87): FGIS sets fee schedules for official inspection and weighing services; fees vary by service type (original, reinspection, appeal), lot size, time of service, and whether performed by FGIS directly or by a designated/delegated agency; export inspection fees are published in the Federal Register annually; FGIS collects fees for official services it provides; designated state agencies collect their own fees under FGIS supervision
  • Designation and licensing of official agencies (§§ 800.180–800.200): FGIS designates state agencies and licensed private organizations to provide official inspection services at interior locations; designation requires meeting financial, personnel, equipment, and management criteria; FGIS may terminate or suspend a designation for failure to meet standards or upon finding of financial irregularity; individual inspectors must hold FGIS licenses issued after qualification testing
• 7 CFR Part 810 — Official United States Standards for Grain (69 sections across 13 subparts — the grade tables establishing quality breakpoints for 12 commodities; this is the document a buyer or seller references when specifying "U.S. No. 2 Yellow Corn" or "U.S. No. 1 Hard Red Winter Wheat"):
  • Subpart A — General Provisions (8 sections): covers barley, canola, corn, flaxseed, mixed grain, oats, rye, sorghum, soybeans, sunflower seed, triticale, and wheat (§ 810.101); "distinctly low quality" designation for grain failing for reasons outside standard grade factors (unusual odor, contamination, toxin contamination); grade certificate format — must read "U.S. No. [X] [class] [grain]" with special grades in alphabetical order (§ 810.106); the "infested" special grade applies when a grain lot contains 2 or more live weevils or other storage-damaging insects per kilogram
  • Subpart D — Corn (5 sections): 4 classes (Yellow Corn, White Corn, Blue and Purple Corn, Mixed Corn); 5 numeric grades plus Sample grade; grade factors: test weight (56 lbs/bu for No. 1, 54 for No. 2, 52 for No. 3, 49 for No. 4, 46 for No. 5), broken corn and foreign material (BCFM — 2% for No. 1, 3% for No. 2), total damage, heat damage; special designations include Waxy, Flint, Flint and Dent, and Sweet corn
  • Subpart J — Soybeans (5 sections): 2 classes (Yellow Soybeans, Mixed Soybeans); grade factors: test weight (56 lbs/bu for No. 1), moisture (13.0% max for No. 1), total damaged kernels (2% for No. 1), heat-damaged kernels (0.2% for No. 1), foreign material (1% for No. 1), splits (10% for No. 1); No. 2 soybeans (14.0% moisture, 3.0% total damage, 2.0% FM) is the commercial delivery standard for most futures contracts and export programs
  • Subpart M — Wheat (5 sections): 8 classes — Hard Red Spring, Durum, Red Durum, Hard Red Winter, Soft Red Winter, Hard White, Soft White, Unclassed; each class has its own grade table; for Hard Red Winter (the dominant U.S. export class): test weight 60 lbs/bu for No. 1, moisture 13.5% max, shrunken and broken kernels (SBK) 3% max for No. 2; special grades include Tough (14.1–16.0% moisture), and Dark Hard and Vitreous (>75% DHAV — the glass-like endosperm that indicates high protein, valued by millers and bread wheat importers)
  • Subpart B — Barley (7 sections): 3 classes (Malting Barley, Blue Malting Barley, Barley); Malting Barley class requires specific soundness and germination energy meeting brewery and maltster specifications — a quality premium of $1–2/bu above feed barley is common when malting quality is achieved
  • Subpart G — Oats (5 sections): 4 grades; minimum test weight 36 lbs/bu for No. 1; special grades include Ergoty (>0.10% ergot — a fungal toxin), Garlicky, Smutty, and Weevily
  • Subpart I — Sorghum (5 sections): 4 classes (Sorghum, Tannin Sorghum, White Sorghum, Mixed Sorghum); tannin sorghum (high-tannin bird-resistant varieties) requires separate class designation because tannin content affects feeding value and trade
• 7 CFR Part 801 — Official performance requirements for grain inspection and weighing equipment
• 7 CFR Part 802 — Official warehouse examiner requirements

Pending Legislation

• HR 4550 — United States Grain Standards Reauthorization Act of 2025: reauthorize FGIS programs and fee authorities. Status: In committee.
• S 1826 / HR 1302 — GRAIN DRY Act: address grain drying and moisture standards. Status: Introduced / In committee.

Recent Developments

FGIS has invested in modernizing inspection technology — including near-infrared spectroscopy, automated sampling, and digital certificate issuance — to improve accuracy, speed, and traceability. Grain quality issues related to mycotoxins (vomitoxin, aflatoxin) and pesticide residues have increased in importance as international buyers impose stricter import standards. The growth of specialty grain markets (non-GMO, organic, identity-preserved) has created demand for additional quality attributes beyond traditional grade factors. Climate variability — droughts, floods, and temperature extremes — has increased the frequency of weather-related grain quality problems, making official inspection even more critical for risk management. See Agricultural Subsidies for the broader crop support framework, Farm Conservation Programs for conservation compliance tied to commodity payments, and Food Safety Regulation for the downstream food-safety system that depends on reliable grain quality data.