NOM Numbers: How to Trace Any Tequila Back to Its Distillery

Every bottle of tequila sold legally carries a four-digit code that reveals exactly where it was made — down to the specific distillery. That code is the NOM number, and once a person knows how to read it, the entire tequila industry becomes a great deal more transparent, and occasionally more surprising, than the labels suggest.

Definition and Scope

NOM stands for Norma Oficial Mexicana, the system of official Mexican standards that governs product categories across industries. In tequila, the NOM number on a bottle is the distillery registration number assigned by the Consejo Regulador del Tequila (CRT), the regulatory body that oversees tequila certification, production audits, and the denomination of origin under Mexican law.

Every licensed tequila producer — whether a massive industrial operation or a small craft facility — receives a unique four-digit NOM. That number follows the tequila into every market where it is sold. Mexican Official Standard NOM-006-SCFI-2012, the core regulatory document for tequila, mandates that the NOM identifier appear on all product labeling. This is not optional. A bottle without a NOM is either a counterfeit or has cleared no legitimate certification pathway — a distinction explored more fully in the counterfeit tequila section of this site.

The scope of what a NOM tells a consumer is specific: it identifies the physical production facility, not the brand owner. A brand may own its NOM, or it may lease production capacity at a facility owned by someone else entirely.

How It Works

The NOM system operates through a straightforward registry model. The CRT assigns a four-digit number to each licensed distillery. That number is then printed on every bottle produced at that facility, preceded by the letters "NOM." A label reading NOM 1414, for example, points to a specific plant in a specific location — in that case, the well-known Destilería Tres Generaciones facility associated with Casa Herradura operations.

Because the number identifies the distillery rather than the brand, the same NOM can appear across dozens of different labels. This is where NOM lookup tools become genuinely useful. Third-party databases — the most widely cited being the Tequila Matchmaker platform and the CRT's own public registry — allow anyone to enter a NOM and see every brand currently or historically produced at that address.

The lookup process has three steps:

  1. Locate the NOM on the bottle — typically found on the back label, near the volume and ABV information, printed in small type.
  2. Enter the number into the CRT's registry or a verified third-party database — the CRT's official registry at crt.org.mx allows public searches.
  3. Cross-reference the facility address with production category — the CRT listing specifies whether the distillery is certified for 100% agave tequila, mixto, or both.

The system is governed under the broader Denomination of Origin for Tequila, which restricts tequila production to five Mexican states: Jalisco, Nayarit, Michoacán, Guanajuato, and Tamaulipas.

Common Scenarios

The NOM number produces genuine surprises in practice. A consumer comparing two bottles from different brands at different price points may discover they share an identical NOM — meaning they were produced at the same facility, possibly from the same distillate. This is common in the private-label and "celebrity tequila" segment, where brand owners contract production at established distilleries without building their own facilities. The celebrity tequila brands category provides concrete examples of how this arrangement functions commercially.

Conversely, a single well-established brand sometimes produces different expressions at different facilities — each with a distinct NOM. This can happen when a company scales production or acquires additional capacity. In those cases, two bottles wearing the same brand name may carry different NOM numbers, pointing to meaningfully different production environments, aging processes, or even regional terroir.

Another scenario involves distilleries that have changed ownership or been acquired. The NOM stays with the physical facility, so historical lookups may show a different company than the current operator. The CRT updates its registry, but third-party databases sometimes lag.

Decision Boundaries

Understanding what a NOM number can and cannot resolve prevents misapplication of the tool.

What a NOM confirms:
- The licensed production facility where tequila was made
- Whether the distillery holds certification for 100% agave tequila or mixto production
- The general geographic location within the denomination of origin

What a NOM does not confirm:
- The specific batch, lot, or recipe used for a given release
- Whether a shared-facility product is identical to a co-produced brand (formulation can differ even within the same plant)
- The quality of any individual expression — two bottles from NOM 1414 can differ substantially depending on the producer's specifications

The most practical boundary: NOM lookup is a starting point for research, not a verdict. A shared NOM between a budget mixto and a premium extra añejo from the same address does not mean they are the same product. It means they share a mailing address — which, depending on context, is either revealing or entirely irrelevant.

For anyone building a broader understanding of how tequila certification and regulation works across the full supply chain, the NOM system sits at the intersection of consumer transparency and regulatory enforcement. The tequila authority home offers a structured entry point into these connected topics across production, classification, and labeling.

References

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