Subcontractor Coordination on Multi-Employer Sites

Why it matters

On a multi-employer site, the crane crew, the electricians, and the roofers can each be safe alone and still hurt each other: a load swung over another trade, power turned on under someone's hands, a floor opening cut where another crew walks. Under OSHA policy, more than one employer can be cited for the same hazard on a shared site. Today: how hazards cross crew lines here, and how we talk before they do.

Hazards

• ⚠ Overhead work by one trade above another’s heads
• ⚠ Hazards created by one crew and inherited by the next shift or trade
• ⚠ Energizing, pressurizing, or testing systems other crews are touching
• ⚠ Guardrails, covers, and barricades removed by whoever needed them out of the way
• ⚠ Conflicting traffic: deliveries, lifts, and crews in the same corridor
• ⚠ Nobody sure who controls a shared hazard

Controls and safe practices

• ✓ Attend the site coordination meeting and bring back what affects us: overhead work, closures, energizations.
• ✓ Communicate before creating exposure: warn affected trades before hot work, floor cuts, or energizing anything.
• ✓ Never remove another trade’s protection (rails, covers, locks); get the controlling contractor to resolve it.
• ✓ Protect what we create: our openings, our leads, our stored material are guarded to protect EVERY trade.
• ✓ One controlling authority per shared system: locks and tags coordinated across employers.
• ✓ Report cross-trade hazards to the GC immediately, and to the exposed crew directly if it cannot wait.
• ✓ Walk the overlap zones with the other foreman when schedules stack trades vertically.

What OSHA says

Exact words from the official text, with a link to each paragraph.

Site check before the talk

Walk the site and tick each line. Each line comes from the text quoted above.

• ☐Know that our crew and the GC share responsibility for safety on the work we do here. (29 CFR 1926.16(c))
• ☐Make sure someone is doing regular job site inspections of the areas, materials, and equipment we share. (29 CFR 1926.20(b)(2))
• ☐Remember that a hazard we create can get us cited even when only another trade is exposed to it. (OSHA Multi-Employer Citation Policy, CPL 02-00-124)
• ☐Take shared hazards to the GC, who has the power to correct them or make others correct them. (OSHA Multi-Employer Citation Policy, CPL 02-00-124 (controlling employer))

Quotes checked word for word against the official OSHA text on October 5, 2026. This is a summary for a crew talk, not legal advice; the full official text governs. How we check

Crew discussion questions

1. Which trades are above and below us this week?
2. What hazards are we creating that other crews inherit?
3. Who is the GC contact when we find another trade’s hazard?
4. Is any of our protection (rails, covers) likely to be in someone’s way?

Applicable OSHA standards

29 CFR 1926.16, 29 CFR 1926.20

More toolbox talks

• Housekeeping in Stairwells and Corridors
• Material Storage and Rack Stability
• Banding and Strapping Cuts
• Plastic Sheeting and Slip Hazards on Floors
• Sharp Deck Screws and Metal Shavings
• Insulation Fibers and Skin Irritation

Talks by trade

General ContractorAll toolbox talks

Safety documents

Site-specific safety plan, $49JHA, $29Written safety program, $149