ISA Office Closure
The ISA Headquarters will be closed on Thursday and Friday, 22 and 23 November 2018 for the Thanksgiving Holiday. Orders received after 2:00 p.m. CST on 21 November will ship on Monday, 26 November.
2019 ISA Conference Call for Presentations
The International Society of Arboriculture is now accepting presentation submissions for the 2019 ISA Annual International Conference & Trade Show. Submit your presentation before the 1 March 2019 deadline.
ISA has announced expanded eligibility criteria for the ISA Certified Arborist® certification recognizing assessment-based programs to fulfill the education requirements to take the exam.