Smart Growth & Regional Collaboration

The Massachusetts Association of Regional Planning Agencies (MARPA) is a coalition of the 13 Regional Planning Agencies (RPAs) throughout the Commonwealth, including MAPC, that aims to strengthen regionalization and municipal collaboration throughout Massachusetts. MARPA meets monthly at MAPC’s Boston offices and hosts an annual conference at varying locations around the state. For more information, contact a member of MAPC’s Government Affairs staff.

The Massachusetts Smart Growth Alliance (MSGA) promotes healthy and diverse communities, protects critical environmental resources and working landscapes, advocates for housing and transportation choices, and supports equitable community development and urban reinvestment. MAPC is a member of MSGA. For more, visit

Transportation for Massachusetts (T4MA) is a diverse coalition of organizations working together to create safe, convenient, and affordable transportation for everyone. T4MA, of which MAPC is a member, advocates for transportation funds to be spent fairly and responsibly, for transportation decisions that are transparent and accountable, and to ensure that our transportation network has sufficient resources to meet tomorrow’s needs all throughout the Commonwealth. For more, visit

The Metropolitan Mayors Coalition (MMC) is a group of cities in towns in the urban core of Metro Boston whose leaders gather to exchange information and create solutions for common problems. The municipal officials in this group represent more than 1.4 million constituents, and represent Arlington, Boston, Braintree, Brookline, Cambridge, Chelsea, Everett, Malden, Melrose, Medford, Newton, Quincy, Revere, Somerville and Winthrop. MAPC facilitates and staff the work of the MMC.

The North Shore Coalition is a group of 18 cities and towns on the North Shore, facilitated by MAPC staff. The Coalition is a voluntary forum where municipal leaders share information and solutions to common problems particular to the North Shore region. The municipal officials in this group represent nearly 400,000 residents from Beverly, Danvers, Essex, Gloucester, Hamilton, Ipswich, Lynn, Manchester-by-the-sea, Marblehead, Middleton, Nahant, Peabody, Rockport, Salem, Saugus, Swampscott, Topsfield, and Wenham.

The National Association of Development Organizations (NADO) provides advocacy, education, research, and training for the nation’s regional development organizations. The association and its members promote regional strategies, partnerships, and solutions to strengthen the economic competitiveness and quality of life across America’s local communities. For more, visit

The National Association of Regional Councils (NARC) serves as the national voice for regionalism by advocating for regional cooperation as the most effective way to address a variety of community planning and development opportunities and issues. NARC’s member organizations are composed of multiple local governments that work together to serve American communities large and small and urban and rural. For more, visit

Transportation for America (T4A) is an alliance of elected, business and civic leaders from communities across the country, united to ensure that states and the federal government step up to invest in smart, homegrown, locally-driven transportation solutions. These are the investments that hold the key to our future economic prosperity. For more, visit

Smart Growth America advocates for people who want to live and work in great neighborhoods. Smart Growth America believes smart growth solutions support thriving businesses and jobs, provide more options for how people get around and make it more affordable to live near work and the grocery store. Smart Growth America works with communities to fight sprawl and save money. For more, visit