Certified Arborist

Earning Certification

Arborists must attain a high level of knowledge in regards to tree care. The primary objectives of an arborist certification are to improve technical competency, create a pathway to further personal education and professional development, and provide the public a way to identify professionals who have achieved knowledge and skill in tree care practices. The exam an individual must pass requires extensive knowledge in the following areas: Soil management, tree biology, identification and selection, installation and establishment, diagnosis and treatment, safe work practices, pruning, tree protection, tree risk management, and urban forestry.

The International Society of Arboriculture (ISA) qualifies applicants who meet stringent training and knowledge requirements in all aspects of arboriculture. Requirements include having three or more years of full-time, hands-on work experience in the field and/or a degree in one of the following related fields from an accredited educational facility: Arboriculture, horticulture, landscape architecture, forestry.

The proud tradition of tree and plant health care continues at Nels Johnson Tree Experts, now in its third generation of family leadership with a board certified master Arborist, certified arborists, certified tree workers, and certified treecare safety professionals on staff.