(a) Definition. Lubricants that are specifically formulated for use in the bearings found in water turbines for electric power generation. Previously designated turbine drip oils are used to lubricate bearings of shaft driven water well turbine pumps.

(b) Minimum biobased content. The Federal preferred procurement product must have a minimum biobased content of at least 46 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 water turbine bearing oils. 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 water turbine bearing oils.