CDFA Processor License & California Grape Crush Report Compliance Guide for Wineries

Last reviewed: October 27, 2026

When planning or operating a winery in Napa Valley or Sonoma County, producers naturally focus first on their federal TTB Bonded Winery permit and California ABC Type 02 or Type 17/20 license. However, purchasing winegrapes or bulk wine from California growers triggers a separate and strictly enforced set of agricultural regulations administered by the California Department of Food and Agriculture (CDFA).

Missing a CDFA Processor License before harvest, failing to issue compliant weighmaster certificates at the crush pad, or filing an inaccurate annual Grape Crush Report can result in administrative penalties, grower lien disputes, and problems substantiating AVA, varietal, and vintage claims on TTB COLAs. Below is a practical compliance roadmap prepared by Gateway Compliance Napa.

1. Who Needs a CDFA Processor License?

Under the California Food and Agricultural Code (beginning at § 55401), the CDFA Market Enforcement Branch (MEB) requires any person or business entity engaged in the business of processing or manufacturing farm products—specifically including crushing grapes into wine or purchasing bulk wine/juice produced from California grapes for resale or processing—to obtain a CDFA Processor License whenever they purchase farm products from a California producer (grower).

• Brick-and-Mortar Wineries & Alternating Proprietors (Type 02): Any winery or Alternating Proprietor (AP) purchasing winegrapes from California vineyard owners (including related-party vineyard LLCs that are separate legal entities from the operating winery LLC) generally requires a CDFA Processor License.
• Custom Crush Clients & Virtual Brands (Type 17/20): Even if a host facility crushes and ferments the fruit under contract, if the Type 17/20 custom-crush client contracts directly with the vineyard grower to buy the grapes, the client entity must hold its own CDFA Processor License.
• 100% Estate-Grown Exemption: A winery that crushes only grapes grown on land owned or leased directly by the exact same legal entity that holds the winery license—and never purchases grapes or bulk wine from outside growers or separate sister LLCs—may be exempt from processor licensing, though it must still evaluate annual Grape Crush Report rules.
• Cash Buyer vs. Credit/Bonded Processor: Licensees paying growers on credit terms (rather than cash in full at the time of delivery) are subject to tiered CDFA license fees based on annual dollar volume of farm products purchased and must comply with California grower producer-lien disclosures.
• CDFA Agent Licenses: Any officer, winemaker, or grape buyer who negotiates grape contracts on behalf of a licensed processor may also require a designated CDFA Agent card.

2. CDFA Weighmaster Licensing & Weight Tags at Harvest

Under California Business and Professions Code Division 5, Chapter 7, whenever winegrapes are purchased by weight (tons), the weight must be determined by a licensed CDFA Weighmaster using a county-sealed scale, and documented on an official Weighmaster Certificate (Weight Tag).

Why do your harvest weight tags matter long after the grower is paid? Because during a TTB or California ABC audit, your weight tags are the primary legal proof connecting the vineyard block, grape variety, harvest date, sugar (Brix) reading, and Crush District (such as District 4 – Napa County or District 3 – Sonoma and Marin Counties) to your TTB Form 5120.17 fermentation records and your 85% AVA / 75% varietal / 95% vintage label claims.

3. The Annual California Grape Crush Report (Due January 10)

Every California winery, custom-crush facility, and grape processor that crushes winegrapes—or purchases grapes for wine production—must file the mandatory California Grape Crush Report (compiled by CDFA in cooperation with USDA NASS) on or before January 10 following the harvest year.

• What Must Be Reported: Total tons crushed by grape variety and California Grape Pricing District (17 districts statewide, including District 3 for Sonoma/Marin and District 4 for Napa), Brix degrees at delivery, and—for purchased grapes—the final weighted-average price per ton paid to growers, contract type, and any Brix or quality adjustments.
• Preventing Double-Counting in Custom Crush & AP Facilities: Host wineries and their Alternating Proprietor or custom-crush clients must coordinate before January 10 to confirm who reports tons crushed vs. tons purchased so tonnage is neither omitted nor reported twice.
• Supplemental Price Updates: If final grape purchase prices are still contingent or unsettled as of January 10, processors must report any subsequent price settlements in accordance with CDFA instructions before the final March publication.

Coordinate CDFA, TTB & ABC Harvest Compliance

Gateway Compliance Napa assists wineries and grape buyers across Napa Valley, Sonoma County, and California with CDFA Processor and Weighmaster licensing, annual Grape Crush Report preparation, and reconciliation between harvest weight tags and TTB Form 5120.17 reporting. Contact Taylor Marchand at Gateway Compliance Napa before harvest or reporting deadlines.

This guide provides general educational information and is not legal or tax advice. Confirm current CDFA Market Enforcement Branch, Weighmaster, and Grape Crush Report requirements for your specific winery operation.