For general inquiries, call (651) 284-5067
The proper administrative authority must inspect installations of plumbing for public, commercial and industrial facilities.
This outline explains whom to contact for inspections of these projects.
Please be aware that these projects also have plan review, bond or license requirements. (see special notes)
Contact DLI for inspections for the following projects:
Inspection fees must be forwarded to the department where plumbing plans are submitted to the department and required inspections will be performed by department plumbing inspectors. Unless inspections will be performed by municipal inspectors licensed as master or journeyman plumbers, inspection of installation in the following occupancies will be inspected by the department.
In addition, in areas that have not adopted the State Building Code, the department will perform required inspection of public buildings, including commercial, industrial and licensed facilities
The department will notify submitters of plumbing plans when inspection fees are required.
NEW: Plumbing plan inspection information
The regional plumbing standards representative must be contacted to schedule an on-site inspection.
Except for proposals identified above, the Plumbing Inspection unit does not inspect projects in areas that have a local inspection department and building official. To determine whether the area you are working in is administered under local building code ordinance by local authorities, view this directory of communities that have adopted the state building code.
The DLI Plumbing Inspection unit will assist city and county code enforcement officials, when possible, with plumbing inspections requested by either the code official for the jurisdiction or the plumbing contractor.
The DLI commissioner retains the authority to audit projects for plan submittal/inspection, licensing and bond requirements (see Minnesota Rules 4715.0100 subp. 2).
The Plumbing Inspection unit will provide assistance to local administrative authorities when requested.
Minnesota Rules Part 1300.0215, subpart 1 -- New plumbing systems and parts of existing systems which have been altered, extended or repaired shall be inspected and tested by the proper administrative authority to ensure compliance with all the requirements of this code and the installation and construction of the system in accordance with the approved plan and the permit, except that testing may be waived for work which does not include addition to, replacement, alteration or relocation of any water supply, drainage or vent piping.
All the piping shall be tested and after the plumbing fixtures have been set, and before the system is put into use, the system shall be given a final inspection and test by the proper administrative authority.
The equipment, material, power and labor necessary for the inspection must be furnished by the plumbing contractor.
Minnesota Rules Part 1300.0215, subpart 2 -- It shall be the duty of the plumbing contractor to notify the proper administrative authority and the owner or the owner's authorized agent orally, by telephone or in writing, not less than eight working hours between the hours of 8 a.m. and 4 p.m. before the work is to be inspected or tested. It shall be the duty of the plumbing contractor to make sure that the work will stand the test prescribed before giving the above notification. If the proper administrative authority finds that the work will not stand the test, the plumbing contractor shall be required to re-notify as above. If the proper administrative authority does not appear for an inspection within 24 hours of the time set, excluding Saturdays, Sundays and holidays, the inspection or test shall be deemed to have been made, and the plumbing contractor is required to file an affidavit with the proper administrative authority that the work was installed in accordance with the code, the approved plans and permit, and that it was free from defects and that the required tests had been made and the system found free from leaks; also whether the owner or the owner's authorized agent was present when such inspection or test was made.
New plumbing systems and parts of existing systems which have been altered must be inspected and tested to ensure compliance with the plumbing code.
It is the responsibility of the plumbing contractor to notify the proper administrative authority not less than eight working hours before the work is to be inspected or tested. State inspections for projects in areas that do not have a local inspection department or building official can be made by contacting the plumbing standards representatives for your region.
Important notes: Plans for all installations of plumbing in public, commercial and industrial facilities must be reviewed and approved in advance of installation. Contact the Department of Labor and Industry (DLI) for information about plan review at (651) 284-5067 or www.dli.mn.us/Plumbing.asp. All plumbing must be performed or directly supervised by a plumber licensed by DLI. Visit www.dli.mn.us/Plumbing.asp for additional license and bond information or call (651) 284-5067.