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ComplianceGlossary Term

Overhead Contact Systems

OCS (Overhead Contact Systems) are electrified wire networks suspended above roadways or rail lines to power heavy equipment or vehicles. Subcontractors working near OCS must follow strict clearance protocols to avoid contact hazards. Awareness of OCS boundaries is essential for crane operators, rig movers, and elevated work crews.

Related Terms

Lockout/tagout

Compliance

A mandatory safety procedure requiring workers to isolate and de-energise equipment before servicing or maintenance begins. Subcontractors must follow the site owner's LOTO programme and hold current training documentation. Non-compliance can result in removal from site and contract termination.

Compliance Theatre

Compliance

When a prime contractor or client demands excessive paperwork and box-ticking that looks rigorous but adds no real safety value. Subcontractors absorb the administrative burden without reduced liability or improved site outcomes. Recognising it helps crews push back on busy-work that pulls focus from genuine hazard control.

Hot Work Permit

Compliance

A formal written authorisation required before performing any work that produces heat, sparks, or open flame on a job site. Subcontractors must obtain this permit before welding, cutting, or grinding near flammable materials. Site supervisors issue and sign off on these permits, and work must stop if conditions change.

Api Rp 585 (american Petroleum Institute Recommended Practice 585)

Compliance

A standard governing process safety incident investigation in upstream oil and gas operations. Subcontractors may be required to follow its protocols when involved in a reportable incident on site. Familiarity with it helps field crews meet operator expectations during investigations.

CMMC (Cybersecurity Maturity Model Certification)

Compliance

A U.S. Department of Defence framework requiring contractors to meet specific cybersecurity standards before bidding on federal contracts. For field subcontractors, it means your digital systems, devices, and data handling practices must pass a formal audit. Without certification, you may be disqualified from certain government-linked oil and gas or construction projects.

Surface Transportation Reauthorization

Compliance

A periodic federal renewal of legislation governing road, rail, and trucking regulations. For subcontractors, it can change load limits, hauling permits, and carrier compliance requirements. Review updates carefully, as new rules may affect equipment mobilisation costs and timelines.

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