Personal plumber license forms and resources

Already have what you need to complete an application or renewal? Visit iMS, the department’s online application and renewal system, to get started. 

• View information about creating an account and working in iMS.

The information below will help you complete the application or renewal successfully.

Forms and applications for plumbers and unlicensed individual registration

• Plumber license exam application

  • Directory of exam schedules and testing sites

• Master and journeyworker license renewal form

• Unlicensed plumber registration

  • Unlicensed plumber application/renewal form

  • Plumbing work experience form

• Plumbing reciprocity

• Plumbing personal license change of address form

Water conditioning

• Water conditioning license basics

• Water conditioning contractor license renewal

Backflow prevention

• New or renewal of backflow prevention rebuilder (BF)/backflow prevention tester (BT) registration

Medical gas certification

• Medical gas registration

Questions?

Contact us at dli.license@state.mn.us or 651-284-5034.