Contractor's Registration FormAttachments: Copy of current State of Michigan license (not required for commercial builders): Copy of workers comp. insurance (if applicable): Business Information: Business Name: Business Address: City: State: MI Zip: Email: Name of person licensed: Master license number: Expiration Date: Contractor types:Select the contractor types you would like to register.Make sure you only check trades that you are licensed in, and please confirm that you are not currently registered. Commercial, Residential, Sign Specialty, and Electrical (master) registrations are updated annually on January 1st. Plumbing (master) registrations are updated every three years in concurrence with your State of Michigan contractor licenses on May 1st.Mechanical, and Fire Alarm registrations are updated every three years in concurrence with your State of Michigan contractor licenses on September 1st. Plumbing (master) $10 Sign Specialty $15 Electrical (master) $15 Fire Alarm $15 Mechanical $15 Commercial $15 Residential $15 Storm Water $15 Signature:Click here to learn how to upload a digital signature.