Oklahoma Construction Compliance Requirements
Everything general contractors need to know about lien law, prevailing wage, insurance, and OSHA compliance in Oklahoma.
Mechanics Lien Law
Oklahoma requires subcontractors to file a Pre-Lien Notice within 75 days of first furnishing under 42 O.S. 141 et seq. Mechanics liens must be filed within 4 months of last furnishing. Oklahoma has specific residential project lien requirements including owner notification.
Key Deadlines
Prevailing Wage Requirements
Oklahoma does not have a state prevailing wage law (repealed in 1995). Federal Davis-Bacon applies to federally funded projects only. No state certified payroll requirements.
Insurance Requirements
Workers compensation required for all employers with 1+ employees. Minimum $1M general liability typical. Oklahoma has shifted to an administrative workers comp system (CompSource Mutual available).
OSHA & Safety Compliance
Oklahoma follows federal OSHA standards. No state OSHA plan. Oklahoma Department of Labor provides OSHA consultation. Oil and gas industry safety a particular focus.
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Start 14-Day Free TrialLast reviewed: April 2026. This guide is for informational purposes only and does not constitute legal advice. Consult a qualified attorney for state-specific legal questions.