66-7-410: Gross weight of vehicles and loads.

A. Subject to the limit upon the weight imposed upon the highway through any one axle as set forth in Section 66-7-409 NMSA 1978 and except as provided in Subsection D of this section, the total gross weight with load imposed upon the highway by any one group of two or more consecutive axles of a vehicle or combination of vehicles shall not exceed the gross weight given for the respective distance between the first and last axle of the group of axles measured longitudinally to the nearest foot as set forth in the following table:

Distance in feet between first and last axles of group Allowed load in pounds on group of axles

4 34,320

5 35,100

6 35,880

7 36,660

8 37,440

9 38,220

10 39,000

11 39,780

12 40,560

13 41,340

14 42,120

15 42,900

16 43,680

17 44,460

18 45,240.

B. Except as provided in Subsection D of this section, the total gross weight with load imposed on the highway by any vehicle or combination of vehicles where the distance between the first and last axles is more than eighteen feet shall not exceed that given for the respective distances in the following table:

Distance in feet between first and last axles of group Allowed load in pounds on group of axles

19 53,100

20 54,000

21 54,900

22 55,800

23 56,700

24 57,600

25 58,500

26 59,400

27 60,300

28 61,200

29 62,100

30 63,000

31 63,900

32 64,800

33 65,700

34 66,600

35 67,500

36 68,400

37 69,300

38 70,200

39 71,100

40 72,000

41 72,900

42 73,800

43 74,700

44 75,600

45 76,500

46 77,400

47 78,300

48 79,200

49 80,100

50 81,000

51 81,900

52 82,800

53 83,700

54 84,600

55 85,500

56 or over 86,400.

C. The distance between the centers of the axles shall be measured to the nearest even foot. When a fraction is exactly one-half, the next larger whole number shall be used.

D. The total gross weight with load limitations imposed by this section for any vehicle or combination of vehicles shall be increased by:

(1) four hundred pounds if the vehicle or combination of vehicles uses idle reduction technology; or

(2) if the vehicle is a natural gas vehicle, a standard gross weight limit increase for each axle distance category in this section, established by the division by rule, by an amount equal to the difference between the average weight of the vehicle attributable to its natural gas tank and fuel system and the average weight of a comparable diesel tank and fuel system.