All officials of this state shall encourage the purchase of recycled oil products represented as substantially equivalent to products made from new oil in accordance with § 23-19.6-8 of this chapter.
State procurement of recycled oil products
R.I. Gen. Laws § 23-19.6-9., under Chapter 23-19.6 Used Oil Recycling.
R.I. Gen. Laws § 23-19.6-9.