The I.S.A Arborist Certification program is getting recognition through at least 2 popular tree publications at local book stores. The 2 publications are written under the Ortho series, and the Sunset series, both written for homeowner tree and plant care and selection. I scanned the books written about tree pruning. Both publications in the series directly uses the International Society of Arboriculture as a primary source when searching for a qualified tree care company to work in trees for a homeowner. They also state the companies and/or individuals hired should be certified by the I.S.A. I.S.A. Arborist Certification is becoming recognized as an accepted credential for hiring qualified people to care for trees.
Joe
Joe