Licensing - Heating, Ventilation, Air Conditioning and Refrigeration Contractors

• License Requirements
• Insurance Requirements
• About Electronic Licensing
• Apply for an Original License
• So you want to go to jail....
• Master & Journey Restricted License Upgrade
• Renew a License
• License Activation Application
• Apply for a Reciprocal License
• County Licenses and Permits
• Maryland Apprenticeship and Training
• UA Star Certification
• Request a Verification of Licensure (Letter of Good Standing)
• Request Duplicate License - Individuals
• Change Your Name or Address
• Frequently Asked Questions (FAQs)
• Military Veterans and Families — Learn About Expedited Licensing