(a) Definition. Chemicals that are specifically formulated to purify raw water or to treat and purify wastewater from residential, commercial, industrial, and agricultural systems. Examples include coagulants, flocculants, neutralizing agents, activated carbon, or defoamers. This category excludes microbial cleaning products.

(b) Minimum biobased content. The Federal preferred procurement product must have a minimum biobased content of at least 87 percent, which shall be based on the amount of qualifying biobased carbon in the product as a percent of the total organic carbon in the finished product.

(c) Preference compliance date. No later than July 6, 2020, procuring agencies, in accordance with this part, will give a procurement preference for qualifying biobased water and wastewater treatment chemicals. By that date, Federal agencies responsible for drafting or reviewing specifications for products to be procured shall ensure that the relevant specifications require the use of biobased water and wastewater treatment chemicals.