The plumbers were using a gasoline-powered saw to cut through concrete when they were overcome by carbon monoxide gas emitted from the equipment, causing one of the workers to lose consciousness. 

TD has long valued and understood diversity and gender equality in its workforce, including trades, the field, senior leadership, and all areas of the organization. 

The proposal is subject to a 60-day public comment period, after which the department can issue the final rule, which could occur as soon as this fall.

The USHGC Technical Committee also requested the formation of a Hydronics Task Group to review all hydronics proposals.