An inspection code governing the maintenance and repair of in-service pressure vessels. Subcontractors performing vessel work must often comply with API 510 requirements and use certified inspectors. Non-compliance can result in work stoppages or contract disqualification.
Api 510 (american Petroleum Institute Standard 510)
Related Terms
Environmental Impact Statement (eis)
ComplianceA formal document assessing a project's environmental effects before work begins. Subcontractors must align their operations with EIS commitments or risk work stoppages. Scope changes that violate EIS conditions can trigger costly regulatory reviews.
Punitive Damages
ComplianceCourt-ordered payments that go beyond compensating actual losses, intended to punish serious misconduct. Subcontractors can face these for gross negligence or wilful safety violations. Many prime contracts include clauses limiting or waiving punitive damage liability.
CPWR (Centre for Construction Research and Training)
ComplianceA U.S.-based non-profit that develops safety research, training materials, and hazard guides used widely across North American job sites. Subcontractors often reference CPWR toolbox talks and fall protection resources to meet compliance requirements. Their free publications can support your crew orientations and site safety plans.
Approved Vendor List
ComplianceA client- or prime contractor-maintained registry of pre-qualified suppliers and subcontractors eligible to bid on work. Getting onto an AVL often requires submitting safety records, insurance, and certifications in advance. Without AVL status, subcontractors are typically blocked from receiving purchase orders or contracts.
Osha (occupational Safety and Health Administration) Recordable
ComplianceA work-related injury or illness that must be logged on an OSHA 300 form. This includes incidents requiring medical treatment beyond first aid, restricted work, or lost time. High recordable rates can disqualify subcontractors from bidding on major operator contracts.
Ansi/isea 138
ComplianceThe American National Standard for hand protection selection criteria. It gives subcontractors a structured method to match the right gloves to specific job hazards. Clients and prime contractors increasingly require documented compliance with this standard on worksites.
Latest Compliance News
OSHA Sets August Hearings on 20+ Proposed Rule Rollbacks, Including Chemical and Fall Protection Standards
OSHA has scheduled virtual public hearings beginning August 19 on more than 20 proposed deregulatory rules, covering chemical exposure standards, respiratory protection, and fixed ladder safety systems. Subcontractors have until July 6 to register to testify.
20 hours ago ComplianceTrench Safety Stand Down Set for June 15-19, Registration Now Open
The National Utility Contractors Association is hosting the Trench Safety Stand Down June 15-19, open to all employers doing trench and excavation work. Utility and pipeline subcontractors can register crews online now.
20 hours ago ComplianceCSB Warns Chemical Facilities to Prep for Hurricane Season Now
The U.S. Chemical Safety Board is urging chemical facilities to complete hurricane preparations before a single storm can trigger a catastrophic release. Gulf Coast maintenance and turnaround subcontractors should expect heightened client scrutiny this season.
yesterday ComplianceEnverus and Four Energy Companies Launch AI Safety Platform for Oilfield Crews
Enverus has partnered with Continental Resources, BPX Energy, Chord Energy, and Ranger Energy Services to launch LifeSaver, an AI-powered field safety platform built for oilfield workers. Field pilots are planned for 2026, starting in the Bakken.
yesterdayRelated 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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