Fall protection zones, permit-to-work in confined spaces around open excavations, and crew-count compliance at the man-gate — written against the standards your inspector opens the day he walks the site.
Built for construction site safety officers and GC procurement leads. Every signal Pactwell reasons across maps to a named OSHA 1926 subpart — Subpart M fall protection, Subpart AA confined spaces in construction — so the audit-ready PDF the platform writes at the moment of the breach is the same evidence the inspector opens in his tablet at the trailer.
The three surfaces a construction safety officer signs for.
OSHA 29 CFR 1926 subpart coverage is not aspirational — it is the set of regulations your inspection opens against. Pactwell’s sensor + permit + CCTV correlator writes to those subparts directly, so the morning the inspector walks the leading edge, the evidence he opens is the evidence the platform wrote at the moment of the breach.
OSHA 29 CFR 1926 · Safety and Health Regulations for Construction
Subparts M, AA, L, H, and X — the ones your inspector opens against
Subpart M (fall protection), Subpart AA (confined spaces in construction), Subpart L (scaffolds), Subpart H (materials handling, rigging, cranes), Subpart X (stairways and ladders). Pactwell maps sensor + permit + CCTV combinations to the exact subparagraphs a safety officer or PM is on the hook for — coverage that holds up the morning the OSHA inspector walks the site.
Permit-to-work · fall · hot · excavation · lift · confined
Five permit surfaces a GC runs on a single jobsite.
Fall clearance permits at the leading edge, hot-work permits near combustible storage, excavation and shoring permits before the crew enters the dig, lift-plan permits for every crane pick, and confined-space permits for the manholes and vaults. Pactwell reasons each permit against the live sensor reading and the CCTV frame pointed at the work face — the permit window is enforced, not just issued.
Crew-count · man-gate · JHA roster
Badge-in at the man-gate, reconciled against the day’s Job Hazard Analysis.
Crane signal-person verification before every pick, attendance drop during shift handover, unattended-lift detection when the crew count falls below the lift-plan minimum, and man-down sensor correlation when a worker is unaccounted for beyond the JHA roster. Pactwell turns the badge reader at the gate into the same source of truth the JHA is filed against.
Inputs → outputs
Sensor + permit + CCTV, mapped to the standards your inspector opens.
The matrix below pairs the inputs Pactwell reasons across — anchor force and load-cell sensors, gas (LEL / O₂) sensors at the dig, wind and anemometer at the crane, the CCTV pointed at the fall zone, the man-gate reader at the badge reader, and the JHA roster your PM files every morning — with the construction signal each combination reasons over and the compliance output the audit-ready PDF references.
Inputs
Fall-zone proximity sensorFall clearance permit registryCCTV at the leading edgeRetrieval-line contact sensor
Construction signal Pactwell reasons across
Worker crosses the leading-edge envelope without the retrieval line uncrossed in the same window, while the fall clearance permit is open and no overhead anchor is registered to that harness.
Compliance output
OSHA 1926· §1926.501 Duty to have fall protection · §1926.502 Fall protection systems criteria
Toolbox-talk audit trail· Next-week brief written from the correlated incident — retrieval-line use rehearsed on shift
Inputs
Anemometer at the craneLift plan + critical lift permitCrane signal-person badgeCCTV covering the pick zone
Construction signal Pactwell reasons across
Sustained wind reading exceeds the lift-plan ceiling while the critical lift permit is active and the crane signal-person badge has not crossed the perimeter reader in the last 15 minutes.
Work-order dispatch· Hold on the pick — re-verify signal person and reduce boom radius to the wind-adjusted envelope
Inputs
LEL / O₂ gas sensor in the digTrench depth + shoring sensorExcavation entry permit registryCCTV at the excavation access
Construction signal Pactwell reasons across
LEL or O₂ reading crosses the OSHA action level inside the open excavation while the entry permit is active, with the shoring state dropping out of compliance for the same window.
Compliance output
OSHA 1926· §1926.651 Specific excavation requirements · §1926.652 Requirements for protective systems
Work-order dispatch· Re-shore and re-vent the excavation; resume entry only after the next atmospheric clearance window
Inputs
PM₂.₅ / silica dust sensorRespiratory-fit + medical clearance rosterCrew badge-in readerCCTV at the cutting station
Construction signal Pactwell reasons across
Silica particulate reading crosses the action level for the operation while a crew member without the day’s medical clearance badge crosses the same station reader.
Toolbox-talk audit trail· Medical clearance refresher logged; cutting tool wet-suppression check scheduled before the next shift
Inputs
Thermal imaging at the work faceHot-work permit + fire-watch rosterWind / weather sensorDistance sensor to combustible storage
Construction signal Pactwell reasons across
Active spark or slag stream detected inside the hot-work permit window with the fire-watch badge absent from the watch post and the distance sensor reporting the spark source within the combustible-storage clearance threshold.
Compliance output
OSHA 1926· §1926.352 Fire prevention · §1926.351 Welding, cutting, and heating — fire watch
Work-order dispatch· Hot-work paused; relocate fire watch and re-establish the 35 ft combustible clearance before resume
Inputs
Man-gate badge readerDaily JHA rosterCCTV at the lift zoneMan-down / harness SOS sensor
Construction signal Pactwell reasons across
Crew count crossing the man-gate reader drops below the lift-plan minimum after shift handover, with no replacement badge clearing the JHA roster in the same window and a worker’s harness SOS sensor offline for the gap.
Compliance output
OSHA 1926· §1926.1428 Lift plan minimums · §1926.502 Personal fall arrest systems — inspection
Toolbox-talk audit trail· Shift handover protocol reviewed with both crews; harness-check procedure added to the next morning huddle
Compliance citations are written against the published standard — OSHA 29 CFR 1926, Safety and Health Regulations for Construction. Pactwell capability claims cross-check against the competitor matrix and the enterprise FAQ.
Run the correlator on the highest-risk bay
Two doors in, depending on where you sit.
If you already have the fall-zone sensors, the anemometer on the crane, the badge reader at the man-gate, and the close-circuit cameras at the lift zone online, run the same pilot the matrix above is written against — connect sensors, register permits, point Pactwell at the VMS, and watch a flagged incident arrive inside two weeks. If you’re still evaluating the shortlist, the door for that is open too.