(a) Definition. Coatings formulated for use in potable water storage systems.

(b) Minimum biobased content. The minimum biobased content is 59 percent and shall be based on the entire product.

(c) Preference effective date. No later than November 20, 2007, procuring agencies, in accordance with this part, will give a procurement preference for qualifying biobased water tank coatings. By that date, Federal agencies that have the responsibility for drafting or reviewing specifications for items to be procured shall ensure that the relevant specifications require the use of biobased water tank coatings.