Kentucky Revised Statutes Title XXIX. Commerce and Trade § 363.9053.Use of methyl tertiary butyl ether as fuel additive

(1) Beginning on January 1, 2006, the use of methyl tertiary butyl ether, known as MTBE, as a fuel additive shall be illegal in the Commonwealth of Kentucky. Importation, sale, or storage of fuel containing MTBE shall be unlawful after that date.

(2) Beginning on January 1, 2004, the General Assembly strongly encourages that all reformulated gasoline sold or offered for sale in the Commonwealth utilize domestically produced ethanol in place of MTBE or other gasoline additives.

(3) In order to allow for an orderly transition, trace amounts of MTBE, not to exceed one-half of one percent (0.5%) by volume, will be allowed in gasoline.