Our Mission: Western Chapter ISA is a member driven organization dedicated to fostering a greater appreciation for trees by promoting research and education to advance the professional practice of arboriculture.
The Western Chapter of the International Society of Arboriculture was formed in 1934. It is a nonprofit corporation comprised of over 4000 persons in Arizona, California, Hawaii and Nevada engaged or interested in the practice of arboriculture.
International Society of Arboriculture-Western Chapter
31910 Country Club Drive
Porterville / CA / 93257