The following organizations provide training courses to allow individuals to become accredited for backflow prevention service.
| Anoka Technical College 1355 West Highway 10 Anoka, Minnesota 55303 Phone: (651) 775-1666 Ray Vanzant |
Joint Apprenticeship Committee Local 11 & 589 4402 Airpark Boulevard Duluth, Minnesota 55811 Phone: (218) 733-9443 |
Metro Testing Gary Ford 31222 Cedar Creek Road Hinckley, Minnesota 55037 (612) 221-5481 |
| Minneapolis Joint Journeyman & Apprentice Training Committee Dunwoody Industrial Institute 818 Dunwoody Boulevard Minneapolis, Minnesota 55403 Phone: (612) 734-5262 |
Plumbers Services 2055 Leona Street Friendship, Wisconsin 53934 Phone: (608) 339-9612 |
Red River Plumbing, Heating & Cooling Joint Apprenticeship and Training Committee 3002 First Avenue North Fargo, North Dakota 58102 Phone: (701) 237-5968 |
| Saint Paul & Mankato
Plumbers Local 34 411 Main Street Suite 215 St. Paul, Minnesota 55102 Phone: (651) 224-3828 |
Southeastern Minnesota Association of Plumbing & Steamfitting,
J.A.C. P.O. Box 6375 1470 Industrial Drive NW Rochester, Minnesota 55903 Phone: (507) 536-0304 (members only) |
United Association of Plumbers & Pipefitters Local Union No. 126 Joint Apprenticeship Committee 816 1/2 Washington Avenue P.O. Box 14 Detroit Lakes, Minnesota 56501 Phone: (218) 847-3222 |
| University of Wisconsin (Madison) The College of Engineering 432 North Lake Street Madison, Wisconsin 53706-1498 Phone: (608) 262-2061 |
Western Lake Superior Plumbers & Pipefitters Joint Apprenticeship and Training Committee 802 Garfield Avenue Duluth, Minnesota 55802-2636 |