(a) Definition. Chemical agents added to gasoline to increase octane levels, improve lubricity, and provide engine cleaning properties to gasoline-fired engines.

(b) Minimum biobased content. The Federal preferred procurement product must have a minimum biobased content of at least 92 percent, which shall be based on the amount of qualifying biobased carbon in the product as a percent of the weight (mass) of the total organic carbon in the finished product.

(c) Preference compliance date. No later than June 11, 2014, procuring agencies, in accordance with this part, will give a procurement preference for qualifying biobased gasoline fuel additives. By that date, Federal agencies that have the responsibility for drafting or reviewing specifications for products to be procured shall ensure that the relevant specifications require the use of biobased gasoline fuel additives.

[78 FR 34872, June 11, 2013]