R.I. Gen. Laws § 45-34-3: Agreements — How authorized.

Waste disposal agreements are entered into on behalf of the municipality or municipalities upon a vote of the respective financial town meeting or the legislative body of the municipality as may be empowered to appropriate and expend moneys for matters relating to the public health and safety, and these contracts may be signed by the officials who may now contract for each municipality respecting expenditures for these purposes.