Dimethyl Ether used as a motor vehicle fuel shall meet the requirements found in the most recent version of ASTM International D7901, "Dimethyl Ether for Fuel Purposes".
Cal. Code Regs. Tit. 4, § 4191
Note: Authority cited: Sections 12027, 13450 and 13451, Business and Professions Code. Reference: Sections 13401(c), 13401(h), 13401(i), 13401(n), 13413(a), 13591, 13592 and 13595(a), Business and Professions Code.