Crossing warning devices or improvements installed or maintained under this chapter as approved by the commissioner or any predecessor, whether by order or otherwise, are adequate and appropriate warning for the crossing.
Minn. Stat. § 219.402
1985 c 265 art 4 s 1; 1991 c 298 art 2 s 8; 1998 c 403 s 29; 2001 c 213 s 26