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.
Lockout/tagout
Related Terms
Situational Awareness
ComplianceA worker's real-time understanding of hazards, personnel, and conditions on a job site. For subcontractors, it means knowing who is working nearby, what equipment is active, and how conditions are changing. Strong situational awareness reduces incidents and keeps crews aligned with the prime contractor's safety expectations.
Shoring
ComplianceTemporary support structures used to stabilise trenches, excavations, or buildings during construction or repair work. Subcontractors are often required to install shoring before crews can safely enter a dig site. Proper shoring is a regulated safety requirement and failure to comply can result in work stoppages or liability.
MI (Mechanical Integrity)
ComplianceA regulatory and operational standard confirming that pressure-containing equipment is fit for service and free from defects. Subcontractors working on vessels, pipelines, or wellheads must often meet MI requirements before commencing work. Non-compliance can halt operations and trigger liability for field service crews.
RIGI (Régimen De Incentivo Para Grandes Inversiones)
ComplianceArgentina's large-investment incentive regime offering tax, customs, and currency stability benefits to qualifying mega-projects over USD $200 million. Subcontractors working under RIGI-registered operators may benefit from faster payment cycles and reduced import duties on equipment. Understanding RIGI status helps field service companies anticipate project timelines and negotiate contract terms.
MOC (Management of Change)
ComplianceA formal approval process required before altering scope, personnel, equipment, or procedures on a worksite. Subcontractors must submit MOC requests to the operator before making any unplanned changes. Skipping this step can result in work stoppages, liability exposure, or contract penalties.
Prequalification
ComplianceA vetting process where operators assess a subcontractor's safety record, insurance, and certifications before awarding work. Companies must pass prequalification to be added to an approved vendor list. Failing or lapsing can disqualify a subcontractor from bidding on projects entirely.
Latest Compliance News
OSHA's 2026 Agenda Targets Lockout/Tagout, Heat Rule, Power Presses
OSHA's newly released regulatory agenda sets a November target for a modernized lockout/tagout proposal and a December supplemental notice on the heat rule, while MSHA plans a revised silica proposal for July.
3 months agoComplianceOSHA Dallas Region Administrator Talks Fall Protection, Lockout/Tagout, and Enforcement Direction
OSHA's Eric Harbin, administrator of the Dallas Region, discussed fall protection failures, lockout/tagout compliance, and the agency's current enforcement posture in a new interview with Safety+Health Magazine.
6 months agoComplianceOSHA Lockout/Tagout Rules: What Field Crews Must Know
OSHA's lockout/tagout standard requires employers to control hazardous energy during equipment maintenance. Here's a practical breakdown of the key requirements for field service teams.
6 months agoComplianceOSHA Targets November Proposal to Revisit Computer-Based LOTO Controls
OSHA lists a lockout/tagout update (RIN 1218-AD00) with a November 2026 target for a proposed rule on computer-based controls. The current 29 CFR 1910.147 requirements still apply.
9 days agoRelated Guides
When a Jobsite Incident Happens: What Field Workers Need to Know Before Signing Anything
What to do after a jobsite injury or incident, what your rights are before signing incident reports, how workers' compensation works, and how to protect yourself on multi-employer worksites.
Compliance GuideOSHA Citations on Multi-Employer Worksites: What Subcontractors Need to Know
Learn how OSHA's multi-employer citation policy works, why subcontractors get cited for hazards they didn't create, and how to protect your company on operator-controlled job sites.
Compliance GuideHow to Read and Negotiate an Oilfield Master Service Agreement (MSA): A Subcontractor's Guide
Learn which MSA clauses actually matter for oilfield subcontractors: indemnity, insurance, payment terms, and change orders. Know what you're signing.
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