The Bangor Region Chamber of Commerce is endorsing the four bond issues totaling $108 million on Maine's June 8 ballot.
The chamber's board voted Thursday to endorse the bonds. They include $26.5 million for offshore wind research and energy efficiency, $47.8 million for transportation, $23.75 million for community economic development and $10.25 million for clean water projects.
Chamber board Chair Michael Ballesteros says the investments are in line with the interests of the state's business community.
The Bangor chamber also reaffirmed its support of the pending state tax reform law and endorsed a "no" vote on an initiative to repeal it.
Portland chamber also has endorsed the bonds and opposed the repeal of tax reform.