The system will allow vehicles to pass without stopping, including at motorway speeds of up to 130 km per hour, and will be based on in-vehicle electronic tags (ENC) and automatic number plate recognition using cameras.
Light vehicles up to 3.5 tonnes will be required to register a licence plate and valid payment method, while heavy vehicles will have to use ENC devices alongside plate recognition.
Drivers will be able to sign up through a national online platform, a mobile app, other digital services, fast-track entry lanes, or at motorway operator offices and authorised third-party sales points.
Some toll booths will remain at motorway entrances during a transition period, though they will be unmanned and without barriers.
Installation of tolling portals and cameras has already begun on the A3 motorway, with a total of 212 portals planned across the network operated by state-owned Hrvatske autoceste and private concessionaires.