All newly built apartment buildings, dormitories, hospitals and hotels now are required to have hard-wired carbon monoxide detectors.
The final section of a bill passed by the state Legislature last April went into effect Jan. 1.
Sen. Corey Palumbo, D-Kanawha, introduced the bill in the 2012 legislative session after the February death of a Rhode Island construction worker from carbon monoxide poisoning at the Holiday Inn Express along Corridor G.
The bill required carbon monoxide detectors in all apartment buildings, boarding houses, dormitories, long-term care facilities, adult and child care facilities, assisted living facilities, hotels, motels and private homes intended to be rented or leased as of Sept.1, 2012.
Those detectors could be plugged into electrical outlets as long as the outlet was not controlled by a switch.
But starting this past Tuesday, Jan. 1, all newly built facilities that fall into those categories must have hard-wired carbon monoxide detectors.
The State Fire Marshal's office is charged with checking for those detectors.
Deputy State Fire Marshal Joe Leek does not expect to see many violations of the new requirements.
"A lot of (businesses) were coming into compliance before now," he said.