Articles by John Hushagen

Early PNW-ISA Chapter Arborist Certification

Most current members in our region are likely unaware that before there was a Certified Arborist exam sponsored by the International ISA, the PNW chapter had its own CA (Certified Arborist) test. In the late 1980’s, the Western chapter had developed an immediately successful certification exam for its region.  Some of our chapter founders promoted … read more of Early PNW-ISA Chapter Arborist Certification.