How to Perform Tree Inspections Course

Welcome to InterNACHI's free online "How to Perform Tree Inspections Course." This course is provided by our accredited college at


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 regarding 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 the 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 on an inspection of a tree.

Course includes: 

  • 21.0 InterNACHI® CE credit hours;
  • 22,000 words in the course;
  • 22,000-word course textbook;
  • technical illustrations and inspection images;
  • inspection and writing assignment;
  • research and writing assignment; 
  • 70 quiz reinforcement study questions in 9 quizzes
  • 55-question final exam (drawn from a larger pool of questions);
  • instant grading; and
  • a downloadable, printable Certificate of Completion.

You will learn the following topics:    

  • Introduction
  • Ground Inspection
  • Trunk Inspection
  • Canopy Inspection
  • Insects and Diseases
  • Deciduous Trees
  • Fire Danger
  • Electrical Lines
  • Important Points
  • Inspection & Writing Assignment
  • Research Exercise
  • Conclusion
How to Perform Tree Inspections Course
Course #3610, Student Catalog 

Student WorkTime CalculationEstimated Clock Hour Time for the Average Student
Attendance for "Seat Time" 1# of minutes of student attendance / 5010.1
Participation in Learning Activities 2# of minutes of online student participation / 501.0
Interactivity 3# of minutes of student interactivity / 500.5
Reading the Course Text 4# of words in the course / 100 words per minute / 503.0
Reading the Course Textbook 5# of words in the book / 100 words per minute / 50 / 21.5
Academic Engagement 6# of words in the course / 100 / 501.0
Direct Communication 7# of minutes of communication / 500.5
Instructional Video Learning 8# of minutes of video / 500.0
Reinforcement Q & A  9# of questions X 1.85 / 502.6
Writing Assignment of the Inspection  102.0 hours per assignment2.0
Writing Assignment of the Research  112.0 hours per assignment2.0
Academic Activities for an Inspection  123.0 hours for each inspection assignment3.0
Performing an Inspection  134.0 hours for each inspection4.0
Total clock hours
21.0 clock hours
21.0 InterNACHI CE Hours
2.1 CEU

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.  

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.