By JOHN BALL, PH.D., BCMA, CTSP
Most arborists are aware of the Z133 American National Standard for Arboricultural Operations – Safety Requirements. This standard is our road map for safely navigating through the numerous hazards associated with arboricultural operations. It is a living standard, one that is periodically reviewed and updated as our gear evolves and our knowledge of the work and risks expands.
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