All underground tanks having contained flammable, combustible or explosive substances shall be closed and/or removed in accordance with the American Petroleum Institute Recommended Practice — 1604, 2nd Edition, as amended.
Closure of underground tanks
R.I. Gen. Laws § 23-28.22-20., under Chapter 23-28.22 Flammable and Combustible Liquids.
R.I. Gen. Laws § 23-28.22-20.