Article 3
1. The inspection, examination, testing and weighing of vehicles, their parts, accessories, equipment and loads.
2. The enforcement of laws relating to, or connected with, vehicles in so far as such enforcement does not fall within paragraph (1) above.
3. The provision of authority required for carrying on activities relating to vehicles in so far as such provision does not fall within paragraph (1) or (2) above.
4. The promotion of vehicle safety and of environmental protection in connection with vehicles in so far as such promotion does not fall within paragraph (1), (2) or (3) above.
5. The carrying out of operations incidental, conducive or otherwise ancillary to the conduct of the operations described above.