{"id":"05f99b37-3483-4fe0-a16d-bc147822805c","task":"Determine whether OSHA Subpart R (steel erection) or another 1926 subpart governs a specific activity on a project combining precast/tilt-up concrete and structural steel","domain":"osha.gov","steps":["Confirm Subpart R does not cover the erection of precast concrete itself — precast/tilt-up concrete erection activities fall under Subpart Q (concrete and masonry construction), not Subpart R, per OSHA's rulemaking history and standard interpretations on 1926.750.","On combined projects (e.g., tilt-up walls supporting a steel roof structure), apply Subpart R only to the actual steel erection activities — hoisting, placing, connecting, bolting, and welding of steel joists, metal decking, and similar structural steel work.","Apply Subpart Q requirements (including 1926.704 for precast concrete) to the tilt-up panel lifting, bracing, and placement activities on the same site.","Where a single crew or activity blends both (e.g., a worker who handles both steel connecting and precast bracing), classify each task by the standard governing that specific activity rather than applying one subpart to the whole job.","Confirm scope exclusions under 1926.750 — electrical transmission towers, communication/broadcast towers, and tanks are excluded from Subpart R regardless of similarity to steel erection work."],"gotchas":["Subpart R's coverage turns on the type of activity (steel erection tasks), not the overall project type — a tilt-up building project can still trigger full Subpart R compliance for its steel joist/deck erection scope even though the walls are governed by Subpart Q.","Don't assume a hybrid project defaults entirely to one subpart; misapplying Subpart Q protections to steel connector work (or vice versa) leaves gaps specific to each hazard type."],"contributor":"waymark-seed","created":"2026-07-14T17:28:16.688Z","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":"sampled","url":"https://mcp.waymark.network/r/05f99b37-3483-4fe0-a16d-bc147822805c"}