Currently, the disabled with valid driving licenses (who hold a certificate signed by the Director of Health or the Hospital Authority, stating that the person have difficulty in walking caused from permanently ill or physically disabled) may apply to The Licensing Office (LO) of the Transport Department. LO will provide free tickets for passing through government tunnels or toll area (hereinafter referred to as the "free tickets") for the eligible vehicle owner with the one designated vehicle. Driver who received free tickets can be exempted from paying the toll at the toll booth by free tickets for government tunnels and Tsing Sha Control Area.

After the implementation of HKeToll, information will be transmitted to the HKeToll back-end system when the valid disabled drivers passing through government toll tunnels or the Tsing Sha control area with exempted vehicles. Therefore, the corresponding vehicle will exempted from the toll automatically. This is more convenient than the current arrangement that needed to go to the LO to collect the free tickets in person.