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Timothy_M_Walsh_CTSP

  • August 12, 2026

    ANSI Z133-2026: The Progression of Electrical Qualifications

    By Timothy M. Walsh, CTSP

    Among the many changes contained within the pending ANSI Z133-2026 revision, none may prove more significant than the restructuring of Section 4, Electrical Hazards. While much attention has been given to chain saws, drop zones and climbing systems, the electrical [...]

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  • April 15, 2026

    Twenty Years of CTSP: Leadership, Legacy and What Comes Next

    By Timothy M. Walsh, CTSP

    Timothy M. Walsh, CTSP. Like most of us, I didn’t enter arboriculture chasing credentials. I entered because I loved the work: the pace, the responsibility, the crews and the satisfaction of doing difficult work well. But over time, [...]

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  • Safety Crews in the Field
    October 7, 2025

    What “Safety Differently” Means for the Crews in the Field

    By Timothy M. Walsh, CTSP

    In the tree care industry, safety is everything. From the moment a chain saw roars to life or a climber ascends into the canopy, risk is ever present. For decades, safety programs have focused on controlling that risk through policies, [...]

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  • November 1, 2021

    Seagull Safety and Leadership

    By Timothy M. Walsh, CTSP

    This article started out looking at safety leadership and fairly quickly evolved into a message that applies to leadership in general. As such, I will often flip back and forth discussing “safety” and “leadership,” as they are similar from this [...]

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