Pioneer Valley Planning Commission
- Regional planning body for 43 cities and towns in the Pioneer Valley region.
- http://www.pvpc.org/

Merrimack Valley Planning Commission
- Regional planning agency provides planning services to fifteen communities in Northeastern Massachusetts. Features a service list, information about local towns, descriptions of transportation issues, and a video tour.
- http://www.mvpc.org/

Boston Metropolitan Planning Organization
- Cooperative effort among local agencies to achieve effective transportation planning for Eastern Massachusetts; includes statistics and area traveler resources.
- http://www.ctps.org/bostonmpo/

Berkshire Regional Planning Commission
- Area-wide planning agency for the Berkshire region of Western Massachusetts assists with community and regional land use, transportation, economic development, and environmental planning.
- http://www.berkshireplanning.org/