| Face Record |
|---|
| 1 | 1 | Truck weight record code (7) |
| 2-3 | 2 | State code |
| 4-5 | 2 | Functional classification |
| 6-8 | 3 | Station identification number |
| 9 | 1 | Direction of travel |
| 10-11 | 2 | Year of data |
| 12-13 | 2 | Month of data |
| 14-15 | 2 | Date of month |
| 16-17 | 2 | Hour of day |
| 18-23 | 6 | Vehicle type code |
| 24-27 | 4 | (open) |
| 28 | 1 | Day of week (optional) |
| 29-34 | 6 | (open) |
| 35 | 1 | Lane of travel |
| 36-41 | 6 | (open) |
| 42-45 | 4 | Total weight of truck or combination |
| 46-48 | 3 | A axle weight (hundreds of pounds) |
| 49-51 | 3 | B axle weight (hundreds of pounds) |
| 52-54 | 3 | C axle weight (hundreds of pounds) |
| 55-57 | 3 | D axle weight (hundreds of pounds) |
| 58-60 | 3 | E axle weight (hundreds of pounds) |
| 61-63 | 3 | A-B axle spacing (feet and tenths) |
| 64-66 | 3 | B-C axle spacing (feet and tenths) |
| 67-69 | 3 | C-D axle spacing (feet and tenths) |
| 70-72 | 3 | D-E axle spacing (feet and tenths) |
| 73-76 | 4 | Total wheelbase (feet and tenths) |
| 77-79 | 3 | Record serial number |
| 80 | 1 | Continuation indicator: 0 = no continuation record, 1 = has a continuation record |
| Continuation Record* |
|---|
| 1-23 | 23 | Same as columns 1 through 23 of the face record |
| 23-28 | 5 | (open) |
| 29-31 | 3 | F axle weight (hundreds of pounds) |
| 32-34 | 3 | G axle weight (hundreds of pounds) |
| 35-37 | 3 | H axle weight (hundreds of pounds) |
| 38-40 | 3 | I axle weight (hundreds of pounds) |
| 41-43 | 3 | J axle weight (hundreds of pounds) |
| 44-46 | 3 | K axle weight (hundreds of pounds) |
| 47-49 | 3 | L axle weight (hundreds of pounds) |
| 50-52 | 3 | M axle weight (hundreds of pounds) |
| 53-55 | 3 | E-F axle spacing (feet and tenths) |
| 56-58 | 3 | F-G axle spacing (feet and tenths) |
| 59-61 | 3 | G-H axle spacing (feet and tenths) |
| 62-64 | 3 | H-I axle spacing (feet and tenths) |
| 65-67 | 3 | I-J axle spacing (feet and tenths) |
| 68-70 | 3 | J-K axle spacing (feet and tenths) |
| 71-73 | 3 | K-L axle spacing (feet and tenths) |
| 74-76 | 3 | L-M axle spacing (feet and tenths) |
| 77-79 | 3 | Record serial number (same as face record) |
| 80 | 1 | Continuation indicator: 2 = first continuation record for a vehicle with more than 13 axles, 9 = last continuation record |
