LICENSE SUBCATEGORY
BACKFLOW PREVENTION REBUILDER
26
BACKFLOW PREVENTION TESTER
10
JOURNEYMAN PLUMBER
9
MASTER PLUMBER
7
REG UNL PLUMBER
RESTRICTED JOURNEYMAN PLUMBER
5
RESTRICTED MASTER PLUMBER
4
PIPELAYING BOND
PLUMBING CONTRACTOR
1
RESTRICTED PLUMBING CONTRACTOR
REGISTERED EMPLOYER PLUMBING
FIRST LETTER
UNIVERSITY OF MINNESOTA
Minnesota - Plumbing - Registered Employer Plumbing Issued