Massachusetts arborists Association

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The Massachusetts Arborists Association (MAA) is a professional trade organization that serves the commercial arboriculture industry. The MAA advances the goals of its tree service professional members through tree care education, research support, arborist certification and promotion of the value of arboriculture to the public.

Founded in the late 1930s by leading tree care proponents, the Massachusetts Arborists Association (MAA) is proud to be one of the oldest arboriculture associations in the nation. The MAA's membership now includes more than 800 of the state's leading arborists, Massachusetts' tree service professionals.

In 1957, the MAA initiated a voluntary certification program and established the Massachusetts Certified Arborists Examining Committee. The title "Massachusetts Certified Arborist" has become the symbol of tree care professionalism in Massachusetts, through its comprehensive examination and continuing education requirements.

Current research and regulation in the arboriculture field has generated an information "explosion." Many practices once thought appropriate are now considered obsolete and in some cases, counter-productive. Look to the MAA to keep you informed and competitive with the latest in tree care, regulatory issues and sound business practices. Read about our Member Benefits.

The Massachusetts Arborist Association is a member-driven organization which relies on its member volunteers. We invite you to join your fellow tree care professionals in supporting Massachusetts' tree service industry. Contact to inquire about volunteer opportunities with MAA!


The Massachusetts Arborists Association (MAA) was founded on the principle that competition between members is healthy, and that working together for the betterment of the Association and the tree care industry benefits all of us. To that end, all MAA members and all Massachusetts Certified Arborists agree to the following:

      • To operate our businesses and conduct ourselves with safety as our foremost concern.
      • To be generous with our time and resources to help elevate the Association.
      • To promote and practice the highest level of arboricultural standards by using equipment, materials, and methods that are recognized by this industry.
      • To compete with one another fairly by maintaining the highest ethical and moral standards guided by the principles of honesty, transparency, and integrity.
      • To provide a workplace that encourages professionalism and fosters personal development.
      • To encourage all persons who have chosen this profession to succeed and better themselves, and not to tolerate discrimination against any person based on their race, color, religion, sex, disability, or any other protected class covered under law.
      • To adhere to the laws that govern us locally and nationally, and to advocate for ordinances and legislation that do not unjustifiably restrict our business.
      • To recognize that we are viewed by the general public and the government collectively and, therefore, need to observe the standards and adhere to the ethics embodied in this Code.


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