Lockout/tagout

A formal directive halting all or part of a worksite operation due to a safety, contractual, or regulatory concern. Subcontractors must comply immediately, regardless of who issues it. Downtime caused by a stop-work order may affect billing, crew scheduling, and contract timelines.

The process of identifying and marking underground utilities before excavation begins. Subcontractors are often required to confirm locates are valid before breaking ground. Failure to comply can result in strikes, liability, and work stoppages.

The U.S. federal standard governing road signs, signals, and markings near worksites. Subcontractors performing roadside or right-of-way work must follow MUTCD traffic control plans. Non-compliance can result in stop-work orders, fines, or lost contracts.

A trained worker stationed outside a permit-required confined space to monitor entrants and conditions. They maintain communication with the entry team and initiate rescue procedures if hazards arise. Subcontractors must supply a qualified attendant or face work stoppages and liability on site.

A construction or industrial site equipped with sensors, cameras, and connected devices to monitor traffic, equipment, and worker movement in real time. Subcontractors operating in these zones must comply with data-sharing and equipment compatibility requirements set by the prime contractor. Non-compliance can result in site access delays or contract penalties.

A utility line owned and maintained by a private company or landowner, not a public provider. These lines may not appear on municipal locate requests, creating hidden strike risks. Subcontractors must request owner-supplied records before any ground disturbance.

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