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16-18 Arborist Certification Course. Virginia Department of Forestry Training Center, Charlottesville, Va. For details, call 703-753-0499 or visit www.mac-isa.org.
17 Professional Development Series: Risk Tree Management. Plymouth, Mass. For more information, visit www.masstreewardens.org.
17 Treasure Coast Seminar. West Palm Beach, Fla. To learn more, visit www.floridaisa.org/events.php.
19 First Coast Seminar. Jacksonville, Fla. For details, visit www.floridaisa.org/events.php.
5-6 Tree Risk Assessment Course & Exam. Clackamas Community College, Oregon City, Ore. For details, visit www.pnwisa.org.
6-8 Indiana Arborist Association Annual Conference. Marriott Inn, Indianapolis, Ind. For more information, visit www.indiana-arborist.org.
7-9 Montana Green Expo. Holiday Inn Montana Grand, Billings, Mont. For more information, visit http://plantingmontana.com.
7-9 CSRA Tree, Ornamental & Turf Seminar. Augusta, Ga. For details, visit www.georgiaarborist.net.
9-10; 23-24 Arboriculture 101. College Station Conference Center, College Station, Texas. For more information, call 979-218-0783 or visit www.isatexas.com.
10-11 12th Annual Georgia Arborist Association Tree Climbing Championship. Augusta, Ga. For details, visit www.georgiaarborist.net.
12-16 ProGreen Expo. Colorado Convention Center, Denver, Colo. To learn more, visit http://www.progreenexpo.com.
14-15 Maryland Arborist Association Winter Meeting & Pesticide Recertification. Turf Valley Resort & Conference Center, Ellicott City, Md. For details, call 410-321-8082 or visit www.mdarborist.com.