R.I. Gen. Laws § 37-8-12

The department is hereby authorized and directed to maintain flood lights on the State House, so arranged as to illuminate the dome, which shall be illuminated nightly. The department is further authorized, in its discretion, to install other flood lights so arranged as to illuminate such other parts of the exterior of the building as it may determine, the lights to be used at such times as the department may deem fit and proper.