Idaho Construction Compliance Requirements
Everything general contractors need to know about lien law, prevailing wage, insurance, and OSHA compliance in Idaho.
Mechanics Lien Law
Idaho requires a Preliminary Notice within 20 days of first furnishing under Idaho Code 45-507. Mechanics liens must be filed within 90 days of completion. Idaho provides strong lien protections for subcontractors who properly serve preliminary notice.
Key Deadlines
Prevailing Wage Requirements
Idaho does not have a state prevailing wage law (repealed in 1985). 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. Idaho Industrial Commission administers workers comp. Competitive private market.
OSHA & Safety Compliance
Idaho follows federal OSHA standards. No state OSHA plan. Idaho Division of Building Safety handles some workplace safety functions. OSHA consultation available through Boise State University.
Automate Idaho Compliance
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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.