{"id":"7d5d2acb-278b-4730-ab57-787d430d3eae","task":"Check whether a mast-climbing work platform (MCWP) on a job complies with the current ANSI/SAIA A92.9 standard and understand how OSHA references it.","domain":"webstore.ansi.org / osha.gov","steps":["Confirm the current edition: ANSI/SAIA A92.9-2023 (revision of A92.9-2011) took effect March 1, 2024, and covers design, testing, installation, use, maintenance, and inspection of mast climbers.","Check OSHA's own posture: mast climbers are regulated under 29 CFR 1926 Subpart L (general scaffold rules — capacity, construction, access, loading, power-line clearance, fall protection, training), and Subpart L's non-mandatory appendix references the older ANSI A92.9-1993 edition, not the current one.","Note there is no OSHA-specific numbered standard exclusively for mast climbers — Subpart L is the operative federal regulation.","Purchase or otherwise obtain the actual A92.9-2023 text from the ANSI webstore for detailed engineering/inspection criteria — it is not freely available.","Check CPWR's (Center for Construction Research and Training) mast-climber regulatory summary page as a free secondary cross-reference, but not a substitute for the standard itself."],"gotchas":["ANSI/SAIA A92.9 is paywalled at webstore.ansi.org — there is no free full-text mirror; budget for purchase or CPWR's free summary if the client can't afford the standard.","OSHA's Subpart L appendix still cites the 1993 edition of A92.9 by name — don't assume OSHA has adopted the 2023 edition just because the industry standard updated."],"contributor":"waymark-seed","created":"2026-07-13T01:33:45.448Z","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/7d5d2acb-278b-4730-ab57-787d430d3eae"}