A diesel engine meeting EPA (Environmental Protection Agency) Tier 2 emissions standards, regulating nitrogen oxide and particulate output. Many job sites and municipalities restrict or ban Tier 2 equipment in favour of cleaner Tier 4 units. Subcontractors should verify equipment tier requirements before mobilising to avoid costly compliance issues or equipment swaps.
Tier 2 Diesel Engine
Related Terms
Multi-Employer Worksite
ComplianceA site where two or more employers operate simultaneously, such as an owner, general contractor, and subcontractors. Each party carries shared safety obligations under provincial OHS legislation. Subcontractors must understand their specific duties and how site control affects liability.
Acclimatization
ComplianceThe process of allowing workers to safely adjust to extreme heat, cold, or altitude before full-duty deployment. Most worksites and safety regulations require a structured acclimatization period for new or returning crew. Subcontractors must factor this non-productive time into scheduling and labour costs.
FERC (Federal Energy Regulatory Commission)
ComplianceThe U.S. federal body that regulates interstate energy infrastructure, including pipelines and transmission lines. Projects requiring FERC approval often have strict compliance timelines that affect subcontractor scheduling and scope. Work on FERC-regulated assets may require additional permitting and documentation.
PSC (Public Service Commission)
ComplianceA provincial regulatory body that oversees public utilities and energy services in its jurisdiction. Subcontractors working on regulated utility projects must ensure their work meets PSC standards and approvals. Non-compliance can delay project sign-off and affect payment milestones.
RRC (Railroad Commission of Texas)
ComplianceTexas state agency that regulates oil, gas, and pipeline operations. Subcontractors working in Texas must comply with RRC permits, well plugging rules, and environmental requirements. Non-compliance can result in fines or loss of operating authority.
Civil Liability
ComplianceThe legal obligation to compensate another party for damages or losses caused by your work or negligence. For subcontractors, this typically arises from property damage, personal injury, or contract breaches on a job site. Adequate general liability insurance is your primary protection against civil liability claims.
Latest Compliance News
Texas RRC Plugs Six Orphaned Gas Wells in Baffin Bay Coastal Waters
The Texas Railroad Commission has launched a plugging project targeting six leaking orphaned gas wells near Corpus Christi, backed by $100 million in state legislative funding and $3 million from the Texas General Land Office.
2 days ago ComplianceNorth Carolina Ends Penalty Reductions in Fatal Worker Cases
North Carolina has eliminated its "death discount" policy, meaning employers will now face full OSHA penalties when workplace safety violations cause a worker fatality. Learn what this means for subcontractors operating in the state.
3 days ago ComplianceTetra Tech Tapped to Modernize Spillways at Two Columbia River Dams
Tetra Tech has been selected as lead design engineer for a multi-year spillway modernization project at Rock Island Dam and Rocky Reach Dam in Washington state, signaling active hydropower infrastructure work for civil and specialty subcontractors in the Pacific Northwest.
4 days ago ComplianceColorado Bans PPE Cost Deductions from Worker Wages
Colorado Governor Jared Polis signed S.B. 26-160 on June 3, prohibiting employers from deducting the cost of most required PPE from worker wages, with fines up to $200 per employee per week for violations.
5 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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