Jinan, capital of Shandong province, implemented a temporary rule on Wednesday requiring drivers to use cars on alternate days, as heavy smog continued to shroud many parts of the country.

The regulation, which depends on whether the last number of the license plate is even or odd, only applies from 7 am to 7 pm.

Anyone violating the rule will be asked to stop using his car and see his violation recorded by traffic police. But no fines will be imposed.