The 9-1-1 system is governed by Minnesota Statutes 403.02 through 403.164. The link below connects to those statutes at the Minnesota Office of the Revisor of Statutes.
9-1-1 Statute, MS 403 9-1-1 and Public Safety Communications
There are also State Administrative Rules which govern the 9-1-1 system. The link below connects to those rules at the Minnesota Office of the Revisor of Statutes.
Administrative Rules, Chapter 7580 9-1-1 Emergency Communications System