Mo. Rev. Stat. § 311.028: Ozark Highlands spirits, qualification as, requirements — Single Malt, qualification as — Ozark Highlands map.

1. (1) To qualify as "Ozark Highlands" spirits, and to be labeled as such for sale in Missouri, a product shall meet the following conditions:

(a) The product shall be mashed, fermented, distilled, aged, and bottled in the Ozark Highlands region;

(b) The product shall be aged in barrels manufactured from Missouri;

(c) The water source shall be untreated or natural from natural springs or deep wells in the Ozark Highlands, and without chlorination or added chemicals such as fluoride; and

(d) The minimum age of a whiskey shall be four years.

(2) To qualify as "Ozark Highlands" spirits, and to be labeled as such for sale in Missouri, an unaged product, such as gin or vodka, shall meet the following conditions:

(a) The product shall be mashed, fermented, distilled, and bottled in the Ozark Highlands region; and

(b) The water source shall be untreated or natural from natural springs or deep wells in the Ozark Highlands, and without chlorination or added chemicals such as fluoride.

2. To additionally qualify as "Single Malt", the final product shall be distilled and bottled at a single distillery.

3. The product shall be further certified, by seal or other means, by the Ozark Highland Distillers Guild as a qualifying "Ozark Highlands" product.

4. For the purposes of this section, the Missouri department of natural resources shall produce, in collaboration with the Ozark Highland Distillers Guild, and publish an official map of the Ozark Highlands region.