How to Perform Tree Inspections Course


Welcome to InterNACHI's free, online How to Perform Tree Inspections Course. 
The goal of this course is to teach home inspectors some of the most common tree hazards, how to spot them, and what to do about them. Throughout this course, the process of a tree inspection will be laid out in detail. However, it is important to remember that, as a home inspector, you are responsible only for the general visual inspection of the home. The content in this course is meant to educate you on the specific subject of trees so you can better identify potential dangers and hazards.
As a home inspector, you should always defer to a specialist when it comes to anything outside the scope of your knowledge or expertise. In the case of trees, that specialist would be a certified arborist.


Upon successful completion of this course, the home inspector will be able to:
  • describe parts of a tree and the inspection zones;
  • explain the levels of risk assessment;
  • perform ground inspections;
  • perform trunk inspections;
  • perform canopy inspections;
  • describe and identify insects and diseases that affect trees;
  • describe effects of deciduous trees on a house;
  • determine tree fire dangers;
  • check electrical line hazards with trees;
  • generate important points about inspecting trees;
  • take images of trees and their conditions;
  • create an opinion as to a tree's condition; and
  • write an essay based upon an inspection of a tree.


Course includes:
  • 21,699 words;
  • student book;
  • inspection and writing assignment;
  • research and writing assignment; 
  • 165 quiz questions in 9 quizzes
  • 55-question final exam (drawn from a larger pool of questions);
  • instant grading; and
  • a downloadable, printable Certificate of Completion.


The course covers the following: 
  • Introduction
  • Ground Inspection
  • Trunk Inspection
  • Canopy Inspection
  • Insects and Diseases
  • Deciduous Trees
  • Fire Danger
  • Electrical Lines
  • Important Points
  • Inspection & Writing Assignment
  • Research Exercise
  • Conclusion


This course is:
  • open to members for free; and
  • open to non-members for a fee.


And, in keeping with InterNACHI's commitment to Continuing Education, this course is open and free to all members, and can be taken again and again, without limit.
Reminder to members:  InterNACHI's Code of Ethics 1.10 requires that you comply with all government rules and licensing requirements of the jurisdiction where you conduct business.  InterNACHI's courses and Standards generally exceed the Standards of Practice that you are required to abide by locally. 
This course has been approved by:


Upon completion of this course and passing of the 100-question final exam (drawn from a larger pool), the student can download and print their own Certificate of Completion, which is auto-generated in their own name. 

The student-member's information is recorded in InterNACHI's servers for membership- compliance verification, and automatically logs their completion into InterNACHI's online Continuing Education Log. 

How to Perform a Tree Inspection Course

Course #3610



Estimated hours for the average student

Academic Engagement

Reading online course instructional material at 140 words per minute


Taking quizzes


Taking the exam


Conducting a directed and independent inspection study performed according to the Standards of Practice, including the development of an inspection report 


Submitting an inspection and writing assignment


Submitting a research and writing assignment





Studying and reviewing instructional material in preparation for taking quizzes and exam
Reading the downloaded student course book including taking the quizzes with the book
Reading, research, and studying related to completing the research and writing assignment
Studying and preparing for inspection processes according to a Standards of Practice, including capturing and storing digital images with a camera or device, making observations, evaluating conditions, deducing, formulating opinions, communicating observations in written form, attaining competency in performing inspections and using an inspection checklist or software and other inspection tools in producing a report.



Overall Total


37.0 hours / 0.9 SCH

Non-members may view only this first page of the course.
Members will need their username and password.  If you have forgotten your password, CLICK HERE (instant response) or email and request it (don't forget your name). 
InterNACHI... #1 in inspection education.

Some features that make InterNACHI's courses superior to existing Continuing Education options:
  • The course is free for all InterNACHI members.
  • The course is written in pure XHTML code for quick loading.  The course loads well on old computers and loads fast, even with a dial-up modem.
  • The course is designed using a hierarchal menu coupled with a sequential page navigation.  This provides the student with the option to easily repeat areas of weakness.
  • The course permits the student to start, stop and restart any part of the course as often as desired.
  • There is a variety of images within the course, including diagrams, illustrations and photos. 
  • The illustrations can be enlarged for clearer viewing by clicking on them.
  • The text is integrated into InterNACHI's Inspection Glossary.  Rolling over blue-colored terms provides their definition.
  • The final exam uses multiple-choice questions, some of which reference images. 
  • The course's quizzes and final exam have numerous advantages over traditional exam systems:
    1. The course, quizzes and final exam incorporate built-in intelligence,  which identifies and strengthens each student's unique subject weaknesses.
    2. Not only is each question weighted with regard to score, but each answer is weighted, as well as the correctness of each answer being weighted.
      1. Answers to easy questions are weighted such that the student is penalized, in terms of score, for answering incorrectly, but rewarded modestly for answering correctly.
      2. Answers to difficult questions are weighted such that the student is rewarded, in terms of score, for answering correctly, but not penalized for answering incorrectly.
      3. Answers to questions regarding basic safety, or questions every inspector should know the answer to, are weighted such that the student is severely penalized, in terms of score, for answering incorrectly.
  • Upon passing the final exam, the student can print out a Certificate of Completion, which is auto-generated in their own name.
The student's (InterNACHI member's) information is recorded on InterNACHI's servers for membership-compliance verification, and automatically logs their completion into InterNACHI's online Continuing Education Log.