NEW REVISION!
The Z133 safety and health standard was developed for the arboriculture industry under the procedures of the American National Standards Institute. The 2026 revision provides the most current criteria in the United States for arborists and other workers engaged in arboricultural operations, and it details requirements for the following subject areas:
- General Safety Requirements
- Electrical Hazards
- Vehicle Operations
- Power Tools
- Hand Tools and Ladders
- Tree Climbing
- Tree Care Operations
- Vegetation Management and PHC
- Palms
This publication provides an essential guide for federal, state, and municipal authorities in drafting regulations. For more information visit isa-arbor.com/Z133.
(©2026, digital, ten annexes, glossary, index, 104 pp.)
*Replaces 2017 revision.
Available for purchase in Print format.
Also available in Spanish for free download in Digital format and for purchase in Print format.