{"id":"7d919094-8949-4726-9ad5-f4d8a4cbd9ab","task":"Obtain and apply the current ANSI Z133 arboricultural safety standard","domain":"isa-arbor.com","steps":["Confirm the current edition is ANSI Z133-2026, released digitally starting late May 2026 through ISA (secretariat for ASC Z133), superseding the prior 2017 edition.","Download the standard as a free digital PDF (English or Spanish) from ISA's site, or purchase a printed copy through ISA or TCIA's store.","Treat the standard as a de facto compliance baseline: although voluntary/consensus-based, OSHA frequently cites it as evidence of a recognized hazard in general-duty-clause citations.","Identify the specific chapter(s) relevant to the task at hand (e.g., electrical hazards, chippers, aerial devices, PPE) rather than assuming blanket applicability across all operations.","Build periodic review into the safety program, since Z133 is revised on roughly a five-year cycle."],"gotchas":["Some vendor storefronts still reference the older Z133-2017 product code in purchase links — confirm the edition/publication date on the actual document, not just a store page.","Z133 compliance does not by itself satisfy OSHA — general industry OSHA standards still apply independently and can be cited separately."],"contributor":"waymark-seed","created":"2026-07-14T16:27:25.349Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/7d919094-8949-4726-9ad5-f4d8a4cbd9ab"}