Revenue NSW data shows Wagga recorded zero mobile speeding fines during August, following a month of zero fines in July, despite previous months having seen drivers hit with up to 550 infringements and tens of thousands of dollars in penalties.

However, the break might now be over for the city's drivers as a vehicle equipped with speed cameras was spotted on Bourke Street on Sunday and yesterday.

Wagga-based Nationals MLC Wes Fang, who has previously criticised removing warning signs from mobile speed cameras, said the contractor would have to increase their presence to make up for the lost months.

"The operator was not ready to start enforcement when the contract started but the advice that was provided to estimates was the government still expects the number of contracted hours to be enacted by the end of the financial year, so Wagga motorists can expect an onslaught of mobile speed camera enforcement in the next nine months," he said.

"I would encourage motorists to slow down so they can retain their dollars and, more importantly, their licence points."

Transport for NSW told a budget estimates hearing last month that Acusensus, the new speed camera contractor for southern areas of NSW, including Wagga, had "suffered quite significant impacts from COVID-19" and faced delays in hiring staff and procuring vehicles.

Transport for NSW safety, environment and regulation deputy secretary Tara McCarthy did not confirm that mobile speed cameras had returned but said drivers should always assume speed cameras are in operation and stick to the speed limit.

"While there was a short-term reduction in mobile speed camera enforcement in some areas of the state, NSW Police continued to enforce speeding offences," she said.

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