A plan by Tasmania's state government to bypass local council approvals for some developments would result in a "wild west on steroids" development environment, a group of local mayors say — with the government hitting back at council "self interest".

A South Australian council is upset because it says Woolworths and Coles are making grocery deliveries to a town where larger stores are not allowed to open on Sundays.

Mandatory signage rules for the state's truckies have been wound back in the face of industry anger.

The industrial action has been condemned by the state government who warned of a "challenging day" ahead for people accessing healthcare in the public system, that is not life-preserving or emergency.

Wages growth in Australia slows to 3.5 per cent over the past year, according to official data, still outpacing inflation to result in modest real wage increases.