Minn. Stat. § 169.822
The terms in sections 169.822 to 169.829 shall have the meanings given them.
"Gross weight" means the weight on any single wheel, single axle or group of consecutive axles and the gross vehicle weight.
"Single axle" includes all wheels whose centers may be included within two parallel transverse vertical planes 40 inches apart.
"Single wheel" includes two or more wheels with centers less than 48 inches apart on an axle.
"Tandem axles" means two consecutive axles whose centers are spaced more than 40 inches and not more than 96 inches apart.
"Tire width" means the manufacturer's width as shown on the tire or the width at the widest part of the tire excluding protective side ribs, bars and decorations.
"Tridem axles" mean three axles spaced within 9 feet or less.
"Variable load axle" means any axle which is specifically designed so that, through use of an actuating control, the wheels may be lifted so that the wheels do not contact the road surface or may be lowered to carry loads of varying weights when in contact with the road surface.
Minn. Stat. § 169.822
1981 c 321 s 4; 1982 c 424 s 42; 1982 c 617 s 11-13; 1983 c 198 s 9; 1986 c 398 art 13 s 6-9; 1986 c 452 s 20; 1Sp1986 c 3 art 4 s 13; 1991 c 112 s 4; 1991 c 333 s 18, 19; 1992 c 578 s 7-10; 1994 c 635 art 1 s 16; 1998 c 372 art 1 s 8; 2000 c 433 s 1; 2001 c 156 s 1; 2001 c 213 s 10; 2002 c 364 s 13