(a) Definition. Coatings that protect wastewater containment tanks, liners, roofing, flooring, joint caulking, manholes and related structures from corrosion. Protective coatings may cover the entire system or be used to fill cracks in systems.

(b) Minimum biobased content. The Federal preferred procurement product must have a minimum biobased content of at least 47 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 November 19, 2013, procuring agencies, in accordance with this part, will give a procurement preference for qualifying biobased wastewater systems coatings. 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 wastewater systems coatings.