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DLI has authority to take administrative enforcement action against businesses and individuals that violate the laws and rules over which the department has authority. 

For more information about specific actions or to request a copy of an enforcement order, contact our Enforcement Services Unit at 651-284-5069 or When contacting us, please have the name of the subject of the action and the investigative case file number found in the recap of the action in the files linked below.

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Contact us at 651-284-5069 or

Who enforces the plumbing code in Minnesota?

Our agency administers the statewide plumbing code and licensing requirements, and also takes administrative actions against plumbers who fail to meet licensing or installation requirements. 

Complaints can be filed by consumers, business owners, other plumbers or inspectors.

We cannot require plumbers to resolve customer disputes, pay damages or take corrective action unless violations of the Minnesota Plumbing Code are discovered. In some cases, disputes must be resolved through private civil action (the court system).