Become a Member
Your membership pays itself back through discounts on products, access to exclusive resources, and educational opportunities.Become a Member
Attend an Event
We promote safety in all that we do. MAC-ISA provides a huge array of educational events. Click below to view all the upcoming events.Register Online
Become Certified
Want to become a Certified Arborist or Tree Worker? Find out which of the ISA certification credentials best meet your needs.Become Certified
Who We Are
The MAC-ISA is a trade association for arborists, urban foresters, and others involved in the caring of trees. Our mission is "to promote a culture of safety while fostering education and research that supports the care and benefits of trees." The chapter area includes District of Columbia, Maryland, Virginia and West Virginia.
Upcoming Events
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Arborist Certification Course (3 Day Course) 3-2019
March 25, 2019
University of Maryland Extension Office Montgomery County -
Arborist Certification Exam
March 28, 2019
University of Maryland Extension Office Montgomery County -
MAC-ISA 2019 Tree Climbing Championship
April 06, 2019
Morven Park -
ISA Tree Risk Assessment Qualification (TRAQ 3 Day Course) (2)
May 07, 2019
Wetlands Studies and Solutions -
Arborist Certification Course (3 Day Course) 7-2019
July 23, 2019
Hampton Roads Agricultural Research and Extension Center
News & Announcements
2018 MAC-ISA Annual Meeting
2018 MAC-ISA Annual Meeting on October 8-9 in Frederick, MD was a huge success. We had the largest crowd ever! Thanks to all who planned, participated, volunteered. Thanks to our speakers, sponsors and exhibitors! More coverage including pictures coming in our Fall Canopy Coverage! For a link to Patrick Teague's pictures, click here.
Registration Open for Many Events
Registration is available for our Certification courses and TRAQ courses and TRAQ renewal courses.
Bonnie Appleton Memorial Fund Update
We have REACHED OUR initial FUNDRAISING GOAL OF $100,000 to endow this scholarship! Thanks to all who contributed. Scholarship applications are now accepted by the TREE Fund. https://www.treefund.org/scholarships. We will continue to fundraise to increase the amount of future scholarships. Please donate. Read more on the Tree Fund page under the Bonnie Appleton Fund section.
Safety Tips
Helmet Safety
Always wear a helmet with your chin strap buckled.Risk Assessment
Perform a level 2 risk assessment before your climb.Climbing Safety
Always stay on rope.
Utility Lines
Assume that all utility lines are energized.Stay Alert
Stay alert at all times.Protect Crew & Public
Establish a clear work zone and drop zone.PPE Safety
Inspect and clean your PPE regularly.Emergency Response Plan
Establish an emergency response plan prior to work.Check Before Working
Check your equipment, surroundings and yourself prior to everyone's job. Maintain the 4 A's
Maintain the 4 A's: Attitude-Awareness-Action-AccountabilityCommand & Response
Use command and response.Report Unsafe Behavior
Do not accept unsafe behavior (if you see something, say something).Attend An Event
We promote safety in all that we do. MAC-ISA provides a huge array of educational events. Register for one of our events today!
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Annual Meeting Two-day event usually held in October.
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Tree Climbing Championship Chapter members showcase their climbing skills.
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Certification Courses Three-day course to become ISA Certified Arborists.
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Tree Risk Assessment (TRAQ) Consists of a 2-day educational course followed by a ½ day assessment
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Day of Safety To promote a culture of safety while fostering education.
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Tree Fund Events MAC-ISA partners with the Tree Fund.
