Abstract: A system for monitoring of vehicles and particularly heavy vehicles and their compliance with specific network (e.g. road) access conditions uses vehicle telematics solutions. The system includes an in-vehicle unit (IVU) associated with a vehicle being monitored. The IVU includes a receiver for receiving positioning signals, a processor for processing a time-marked log of vehicle data, a storage element for storing the time-marked log and a first wireless communication element for communicating time marked data to a Service Provider (SP) processing apparatus. One or more Service Providers operate Service Provider (SP) processing apparatus. The SP processing apparatus include a SP wireless communication element for receiving time-marked data from one or more IVUs and a SP processor for processing received data.