In order to ensure heavy commercial vehicles are complying with the Weights and Dimensions Regulations, the Department of Public Works operates 5 scale houses, in addition to several mobile units, across the province.
| Location | Phone | Fax |
| Amherst Incoming | 902-667-8724 | 902-667-9165 |
| Amherst Outgoing | 902-667-5008 | 902-667-8537 |
| Canso Causeway | 902-747-2004 | 902-747-2970 |
| Enfield | 902-883-2480 | 902-883-2524 |
| Kelly Lake | 902-861-2991 | 902-861-1335 |