Solar photovoltaic (PV) resources
Information about solar photovoltaic (PV) systems, energy storage systems and related resources for installers and inspectors. Electrical licensing, permits, inspection fees and code NEW: Solar installers must be licensed as residential building contractor or remodeler
Categories: solar, photovoltaic, solar photovoltaic, information., Fuel Cell Systems, Interconnected Electric Power Production Sources, Energy Storage Systems, Direct Current Microgrids
Contact us
DLI main phone numbers Call:  651-284-5005 or 800-342-5354 Wage and hour questions? Minimum wage, PTO, employment laws, earned safe and sick time, paychecks, termination, breaks, employee rights, overtime, family and medical leave (FMLA), etc. Call:  651-284-5075 or 800-342-5354 and press 5
Categories: contact information, contact us, contacts, questions
WCAC members, alternates and legislative liaisons
Business members Labor members Legislative liaisons This list was last updated in October 2025. Access a printable version (PDF file).
License - manufactured home installer
Apply or renew online Applications and forms Manufactured home installer renewal packet Manufactured home installer license packet NEW LICENSE or BUSINESS STRUCTURE CHANGE Online application and renewal
Categories: manufactured home installer, license, qualifying person, manufactured home installer license., manufactured homes
For workers and the public
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Mechanical contractor bond requirements
While there is no state license required for mechanical contractors, businesses must file a $25,000 mechanical contractor bond with DLI in order to contract to perform gas, heating, ventilation, cooling, air conditioning, fuel burning or refrigeration work. The bond must be on the form approved by DLI and written by a surety company licensed to do business in Minnesota. Your insurance agent can help you obtain a bond from a licensed surety company.
Categories: HVAC, Mechanical bond, mechanical code
Grants
Current Recognized Apprenticeship Preparation Programs
Recognized Apprenticeship Preparation Programs prepare individuals to gain the knowledge, skills and abilities needed to enter a registered apprenticeship program, and succeed.
MNOSHA WSC: Alliances
Forming an alliance with Minnesota OSHA Workplace Safety Consultation (WSC) enables organizations committed to workplace safety and health to collaborate with WSC to prevent injuries and illnesses in the workplace. WSC and its allies work together to reach out to, educate and lead Minnesota employers and their employees in improving and advancing workplace safety and health. There are many benefits to participating in an alliance. Through this program, organizations will: build trusting, cooperative relationships with WSC;
Categories: Workplace Safety Consultation, workplace safety, alliances
For business
Workplace posters State Building Codes