In 2011, then Governor Christie pulled New Jersey out of the Regional Greenhouse Gas Initiative and vetoed three attempts by the legislature to rejoin it.
Lawmakers expect Governor Phil Murphy will be receptive to their latest effort to get back in.
Supporters and opponents for a measure that would require the state to be part of RGGI testified at a Senate Environment Committee hearing.
Environment New Jersey director Doug O’Malley says the RGGI program improves air quality and reduces pollution that contributes to climate change.