---
kind: "section"
citation: "27 C.F.R. § 9.23"
title: "27"
number: "9.23"
heading: "Napa Valley."
url: "https://uscodex.org/cfr/27/9.23"
---

# §9.23. Napa Valley.

- (a) **Name.** The name of the viticultural area described in this section is “Napa Valley.”
- (b) **Approved maps.** The maps showing the boundaries of the Napa Valley viticultural area are the:
  - (1) “Mt. St. Helena” U.S.G.S. 7.5 minute quadrangle;
  - (2) “Detert Reservoir” U.S.G.S. 7.5 minute quadrangle;
  - (3) “St. Helena” U.S.G.S. 15 minute quadrangle;
  - (4) “Jericho Valley” U.S.G.S. 7.5 minute quadrangle;
  - (5) “Lake Berryessa” U.S.G.S. 15 minute quadrangle;
  - (6) “Mt. Vaca” U.S.G.S. 15 minute quadrangle;
  - (7) “Cordelia” U.S.G.S. 7.5 minute quadrangle;
  - (8) “Cuttings Wharf” U.S.G.S. 7.5 minute quadrangle; and
  - (9) **Appropriate Napa County tax assessor's maps showing the Napa County-Sonoma County line.**
- (c) **Boundaries.** The Napa Valley viticultural area is located within Napa County, California. From the beginning point at the conjuction of the Napa County-Sonoma County line and the Napa County-Lake County line, the boundary runs along—
  - (1) The Napa County-Lake County line;
  - (2) Putah Creek and the western and southern shores of Lake Berryessa;
  - (3) The Napa County-Solano County line; and
  - (4) **The Napa County-Sonoma County line to the beginning point.**

## Notes

### Amendments

[T.D. ATF-79, 46 FR 9063, Jan. 28, 1981, as amended by T.D. ATF-201, 50 FR 12533, Mar. 29, 1985]

### Authority

Authority: 27 U.S.C. 205.

### Source

Source: T.D. ATF-60, 44 FR 56692, Oct. 2, 1979, unless otherwise noted.

### Amendments

[T.D. ATF-79, 46 FR 9063, Jan. 28, 1981, as amended by T.D. ATF-201, 50 FR 12533, Mar. 29, 1985]