Mid-Atlantic Chapter

The MAC-ISA is a non-profit professional organization of arborists, urban foresters, and others involved in the caring of trees.  Our membership is made up of people from commercial, utility municipal sectors, educational institutions and other green industry related fields.  Our mission is to foster research and education that promotes the care and benefits of trees.  Our chapter area includes District of Columbia, Maryland, Virginia and West Virginia.

Important News and Events 

• 2010 MAC-ISA Tree Climbing Championship registration has begun.

• Check out our new and improved LINKS page for lots of great information.

• MAC-ISA Arborist Certification Course, March 10-12 in Potomac, MD.  Check out the course brochure.

• Check out MAC-ISA's legislative blog.