Minnesota and surrounding areas Select a state... Arizona California Illinois Minnesota North Carolina New York Ohio Texas CSI Testing 14020 23rd Avenue North Plymouth, MN 55447 Carl LaBella Karen Von Holtz Nancy Trautman Bonnie Henderson Phone# 763-383-9535 Fax# 763-383-9546 Email: csi@indcert.com Web: www.csitesting.com States Covered: North Dakota, Minnesota, South Dakota, Nebraska, Iowa, Kansas, Wisconsin