That is a fantastic question that we would love to answer for you. First things first, ISA stands for the International Society of Arboriculture. ISA Certified Arborists are arborists that follow a code of ethics that ensures the reliability and credibility of their work. Hiring a tree service that has certified arborists on staff is the best way to guarantee the safety of you, your property, and the workers.


The Importance of an ISA Certificationcertified arborist

Being a certified arborist is no easy feat. This isn’t a simple two-week class that anyone can take to become certified. An ISA certified arborist has spent hours working in the field and practicing proper technique. There are actually six ISA certifications. To earn any ISA Certified Arborist credential, you must be trained and educated in every aspect of arboriculture.


Today, we will discuss three popular certifications - an ISA certified arborist, an ISA Certified Tree Worker Climber Specialist, and an ISA Certified Tree Worker Aerial Lift Specialist.


ISA Certified Arborist

Let’s start with the first certification - an ISA Certified Arborist. Make sure the tree service you are looking to hire has these certified arborists as part of their in-house staff. Some companies do not have these qualified arborists on staff.


Before a person is eligible to take the ISA Certification test they must:

  • Have at least 3 years of full-time work experience in arboriculture.
  • OR a degree in the field of arboriculture, forestry, landscape architecture, or horticulture.

Once a person passes the test they are officially ISA certified, but the dedication doesn’t stop there. Arborists must maintain their certification by retaking the test or by earning the required number of continuing education units.


ISA Certified Tree Worker Climber Specialisttw 57

Large trees need to be climbed and cut down in incremental parts. These arborists demonstrate the utmost safety on the job. A certified ISA climber is trained in aerial rescue, first aid, and CPR (on top of the other requirements listed above) before they can become certified. The workers are tested in both a real life setting and a classroom setting.


ISA Certified Tree Worker Aerial Lift Specialist

Aerial lift operators are needed to remove large tree branches. An ISA certified aerial lift specialist will be safe, experienced, and efficient compared to an uncertified worker. These workers thoroughly know safety procedures, their trucks, and trees. This allows them to perform their job in a safe and proper manner.


There are several other ISA certifications that weren't touched on in this blog: a utility specialist, a municipal specialist, and a master arborist. These specialists are more common in commercial tree services (which Precision also offers). For more information about ISA and their certifications, click here.


If you would like to hire Precision and our highly skilled certified arborists, give us a call today! We’ve been serving the Minneapolis and St. Paul area for over 30 years.