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  • Dedication. Duty. Devotion.

    Mass C.O.P. is the largest law enforcement union in Massachusetts. Our focus on the welfare of our police officers has resulted in unprecedented membership growth. We now represent over 3,600 members serving in more than 130 cities and towns in Massachusetts. Our long-term strategic planning and experienced staff has made us the most powerful and trusted law enforcement advocate in the state of Massachusetts. 

    Want to know more about who we are? Click here to learn about us and discover the benefits of being a part of Mass C.O.P.

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