The International Society of Arboriculture (ISA) is a worldwide professional
organization dedicated to fostering a greater appreciation of trees and to promoting
research, technology, and the professional practice of arboriculture. The I.S.A's
mission is to educate and help the public acquire an understanding of the importance
and value of proper tree care. The certification program was originally written
by the Western Chapter of the I.S.A and is now over seen by the parent organization.
Being involved with the I.S.A enables membership interaction toward increasing arboriculture
awareness.
The Western Chapter of the International Society of Arboriculture was
formed in 1934. It is a nonprofit corporation comprised of over 3200 persons in
Arizona, California, Hawaii and Nevada engaged or interested in the practice of
arboriculture.
Learn more about the ISA.
>> Learn more about the WCISA
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The Tree Care Industry Association formerly the National Arborist Association
is our political watch dog. The association keeps owners of tree care company's
aware of the legal and political equirements with in our industry. Most recently
the N.A.A has embarked on education by producing excellent training videos.
>> Learn more about the
TCIA.

The California Arborist Association was founded in 1934. Arborists from the
east coast migrated to the Bay Area and formed the initial group. Men like Roger
Sohner, Leslie Maine and Mallard Blair created an alliance of dedicated, professional
tree workers. Today the association is there to upgrade the skills of the membership's
by providing workshops in various aspects of arboriculture.
>> Learn more about the
CAA.
>> Read the Arborist's creed and principles of practice. |