Which alcohol does not require a dealer's stamp?

The correct answer is that 190 proof ethyl alcohol does not require a dealer's stamp. In many jurisdictions, including Hawaii, specific concentrations of ethyl alcohol, particularly those considered to be "industrial" grades, are exempt from certain regulatory requirements associated with commercial sales.

191 proof ethyl alcohol, which is approximately 95% pure alcohol, is typically utilized for manufacturing, laboratory use, and other non-consumable purposes. Because of its high concentration and potential for misuse, regulations often omit the need for a dealer's stamp, which is generally a requirement for alcohol intended for consumption or retail distribution.

In contrast, lower proofs like 160 proof and 120 proof alcohol, which contain a higher alcohol-by-volume percentage and are often considered for beverage use, do require a dealer's stamp. Similarly, 80 proof ethyl alcohol—commonly found in many alcoholic beverages—also necessitates a dealer's stamp due to its classification as a consumable product.

Understanding these distinctions is vital for compliance with alcohol laws and regulations, which aim to control the distribution and safety of alcohol sales.