After years of negotiations, Massachusetts and other states on the East Coast are poised to sign a landmark agreement that would constitute one of the nation’s most ambitious efforts to fight climate change.

By the end of the month, a group of 12 states and Washington, D.C., are expected to announce details of the controversial cap-and-invest pact, which would require substantial cuts to transportation emissions, the nation’s largest source of greenhouse gases.

Called the Transportation Climate Initiative, the accord aims to cap vehicle emissions from Maine to Virginia and require hundreds of fuel distributors in participating states to buy permits for the carbon dioxide they produce. That limit would decline over time, mirroring a similar pact that has reduced power plant emissions in the Northeast, with the goal of reducing tailpipe emissions by as much as 25 percent over the next decade.


“Every reputable source of analysis . . . shows that the TCI program will deliver net economic benefits, will be a job creator, and will save us billions of dollars in avoided health costs,” said Jordan Stutt, carbon programs director for the Acadia Center, an environmental advocacy group in Boston. “We need TCI and other policies to deliver cleaner air, better transportation options, and leadership on climate change.”

Read the full article in the Boston Globe here