"Cabinet at its meeting on Wednesday... decided that Sanral should proceed with the implementation of e-tolling," Martins told reporters in Pretoria.

"Today, the department of transport gazetted the toll tariffs and regulations for public comment."

e-tag users to be capped at R550

Government has proposed that toll fees for e-tag users be capped at R550 a month for light vehicles, Martins said .

"Registering for an e-tag account will provide users with the lowest possible toll fees," he told reporters in Pretoria.

"Following the consultations, we have lowered tariffs, reduced caps in all categories, offered discounts on tagged vehicles and during peak hours, and exemptions on public transport."

According to a Sanral presentation there were three different tariffs for different class of vehicles.

The standard tariff for a normal car, or Class A vehicle, was 58c/km.

The e-tag tariff was based on 30c/km.

Martins said that at the end of the 30 days, after government had considered the public's views, the final tariffs would be published.