Contact Us

Email us
Phone: +1.678.367.0981
Fax: +1.240.547.1795

Mailing Address

International Society of Arboriculture
PO Box 191
Annapolis Junction, MD 20701
United States

Physical Address

International Society of Arboriculture
270 Peachtree St NW, Suite 1900
Atlanta, GA 30303
United States

AN 02 2022
Click on image above for a larger view.
  • AN 02 2022
CEUs are available for this product.

Sonic Tomography for Tree Risk Assessment CEU Quiz

By Chris Fields-Johnson, Sarah Ruark, and A.D. Ali

  • Item #:
  • Member Price: $0.00(US Dollars)
  • Non-member Price: $13.95(US Dollars)
  • Quantity:    

Arborist News quizzes are available free online to members for one year after the date of publication; a maximum of six quizzes are available at any time. CEU quizzes for older articles may be purchased by both members and non-members.

Sonic tomography is an advanced technology used to detect internal defects in trees which cannot be seen from the outside without having to resort to invasive drilling. It produces a two-dimensional image called a tomogram that can be interpreted to estimate the size of defects within the tree. The technology is used in Level 3 Tree Risk Assessments to supplement other observable conditions and to help provide a more complete understanding of the risk associated with a tree, along with better informed options for mitigating risk. 1 CEU (A, M, T, L, Bs, Bm)

CEUs for this quiz may be earned only once during the life of your certification.

Related Products

Other products you might like


  • No Reviews