Weekly digest #126: OSHA updates

What changed this week

OSHA rolled out fresh enforcement guidance and citation patterns that hit electrical trades hard. The focus: arc flash documentation, lockout/tagout verification, and temporary power on construction sites. If you run crews or work solo, the paperwork burden just got heavier, and the on-site expectations got stricter.

Field inspectors are pulling more records on the spot. Incident energy calculations, boundary markings, and PPE category selection all need to match what's actually on the gear label. Stale labels from a 2018 study won't hold up if the upstream protection has changed since.

The short version: your written program, your labels, and your field practice all need to tell the same story. Any gap between them is a citation waiting to happen.

Arc flash documentation tightened up

OSHA leans on NFPA 70E for arc flash compliance, and recent citations show inspectors checking three things fast: the arc flash risk assessment, the equipment labeling, and the PPE selection method. NEC 110.16 requires the warning label on equipment likely to be serviced energized, but NFPA 70E drives the detail on that label.

If your label shows incident energy in cal/cm² and the working distance, make sure the study backing it is current. A system change within five years, or anything upstream that alters available fault current, triggers a re-study under NFPA 70E 130.5.

• Label must match current system conditions, not the original commissioning study.
• Risk assessment documentation must be accessible on the jobsite, not just at the office.
• PPE category tables (Table 130.7(C)(15)(a)) only apply when parameters match exactly. Outside those limits, use the incident energy analysis method.

Lockout/tagout: the verification step they're catching

29 CFR 1910.333 covers safety related work practices, and the piece inspectors are writing up most often is the test-before-touch verification. Applying the lock is step one. Proving zero energy with a rated meter on a known-live source, then the target, then the known-live source again is what closes the loop.

NEC doesn't write LOTO procedure, but NFPA 70E 120.5 does, and it mirrors what OSHA expects. The three-point test is the part crews skip when they're tired or rushed. That's exactly when someone gets hurt.

Keep a known-live source in the gang box. A 9V battery with leads, or a dedicated proving unit, means you never have to hunt for a live circuit to verify your meter before the test. No hunting, no shortcuts.

Temporary power on construction sites

GFCI protection for temp power is not optional, and OSHA is citing sites that rely on the assured equipment grounding conductor program without proper documentation. NEC 590.6(A) requires GFCI protection for all 125V, 15A, 20A, and 30A receptacles used by personnel on construction sites. The AEGCP option under 29 CFR 1926.404(b)(1)(iii) exists, but the written program, the testing schedule, and the competent person designation all have to be in place and current.

Most crews find GFCI is simply easier. Spider boxes with integral GFCI protection, regular trip testing, and replacement of any device that fails to trip at or below 6 mA. Log the tests.

• All single-phase 125V receptacles up to 30A: GFCI required (NEC 590.6(A)(1)).
• Other receptacle configurations: GFCI or a documented AEGCP (NEC 590.6(A)(2) and (A)(3)).
• Cord sets and extension cords: inspect before each shift, tag out anything with damaged insulation or missing ground pins.

Working space and access, still a top ten

NEC 110.26 working space violations remain one of the most cited electrical items during multi-trade OSHA walkthroughs. The 30 inch width, 3 foot depth (for systems 150V or less to ground), and 6.5 foot headroom get squeezed when other trades stage material in front of panels.

This is a daily walk-down item. If a plumber stacks fittings in front of the panel, the violation is on the electrical contractor when the inspector walks through. Push back the same day, and document it.

Photograph the clear working space after rough-in and again at trim. If another trade encroaches, you have dated evidence showing the space was compliant when you left it. This has saved more than one contractor from a citation.

What to do before Monday

Pull your arc flash study date. If it's been more than five years, or if any upstream transformer, main breaker, or feeder has changed, start the process for a re-study. The study itself takes weeks; the citation takes minutes.

Walk the tool cribs and truck stock. Confirm every meter in rotation has a current cat rating appropriate for the work, and that proving units or known sources are available for every crew. Rotate out any meter with cracked insulation or a questionable calibration sticker.

1. Verify arc flash labels match the current study.
2. Confirm LOTO kits include a proving source or documented known-live reference.
3. Audit temp power: GFCI devices, cord sets, AEGCP logs if applicable.
4. Walk every energized panel for NEC 110.26 working space compliance.
5. Refresh crews on the three-point test. Short toolbox talk, ten minutes.

Paperwork and field practice have to match. The crews who stay out of trouble are the ones who treat documentation as part of the install, not an afterthought.