(a) Definition. Gardening supplies and accessories are products that are used to grow plants in outdoor and indoor settings. Examples include seedling starter trays, nonwoven mats or substrates for hydroponics, and flower or plant pots. This category excludes compost activators and accelerators; erosion control materials; fertilizers, including soil inoculants; foliar sprays; mulch and compost materials; and soil amendments.

(b) Minimum biobased content. The Federal preferred procurement product must have a minimum biobased content of at least 43 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 gardening supplies and accessories. 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 gardening supplies and accessories.