Detailed exam content and specific sub-category subjects for each plumbing code chapter are fonud under the heading of "Examination Knowledge Area" in the linked exam guide below:
| Subject Area | No. of Sub-Categories |
|---|---|
| Basic Plumbing Principles | — |
| Conformance with Code | — |
| Chapter 2 – Definitions | — |
| Chapter 3 – General Regulations | 76 |
| Chapter 4 – Plumbing Fixtures & Fixture Fittings | 129 |
| Chapter 5 – Water Heaters | 35 |
| Chapter 6 – Water Supply & Distribution | 213 |
| Chapter 7 – Sanitary Drainage, Part I - Drainage Systems | 112 |
| Chapter 7 – Sanitary Drainage, Part II - Building Sewers | 152 |
| Chapter 8 – Indirect Wastes | 57 |
| Chapter 9 – Vents | 66 |
| Chapter 10 – Traps and Intercepts | 70 |
| Chapter 11 – Storm Drainage | 76 |
| Chapter 16 – Non-Potable Rainwater Cachment Systems | 47 |
| MN Chapter 4716 – Plumber Licensing & Registraion | 6 |
| MN Admin Rules Ch. 1300 | 2 |
| Statutes Related to the Minnesota Plumbing Code | 1 |
NOTE: On page one of the exam bulletin it states: "The plumbing and water conditioning license exam is based on the 2020 edition of Minnesota Chapter 4714, Chapter 144, Chapter 325, and Chapter 326". Chapter 4714 is the known plumbing code linked above, but the other statutes listed are either outdated or do not apply to this license.
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