The governors of 11 Northeast and mid-Atlantic states have signed an agreement to work to reduce greenhouse gas emissions from transportation fuels.

The goal is to lower the carbon content of fuels used by vehicles, which represent about 30 percent of greenhouse gas emissions in the region.

The agreement signed Wednesday will help create a regional framework for a low-carbon fuel program by 2011.

Mass. Gov. Deval Patrick says the program could spur economic growth through technology development and green energy jobs.

The governors of Connecticut, Delaware, Maine, Maryland, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island and Vermont also signed the agreement.