Clusters of federal election posters are already appearing on roadsides around the Bathurst region, including beside the Mitchell Highway where electricity poles and trees have had advertisements attached.

But, according to council general manager David Sherley, these posters do not breach regulations.

"There are special regulations relating to posters during elections," Mr Sherley said.

"[It] is permissible to display complying electoral matter (posters) for a period of five weeks prior to an election being held and one week immediately following an election."

However, Central West Green spokeswoman Tracey Carpenter has labelled the posters policy hypocritical.

Local activists were ordered in December to take down posters opposing the proposed sale of the region's treated effluent.

"I'm fascinated by council claiming that election posters were OK," Ms Carpenter said.

"We were told about ‘Don't Mine the Macquarie’ posters that they couldn't be on any public asset and [council] would prosecute.

"If the community can't put up its own posters about issues with public infrastructure then the candidates shouldn't be able to either."

Ms Carpenter recommended candidates instead approach property owners for permission to display their posters on private land.

Nick Xenophon Team (NXT) candidate Rod Bloomfield admitted he had unlawfully displayed campaign posters on power poles without seeking company approval, but said he had since sought permission upon realising his error.

"I didn't realise we had to ask permission from the electricity companies but we have done that retrospectively and are waiting for a response," Mr Bloomfield said. 

Labor candidate Jess Jennings said he had avoided using electricity poles and trees to promote his campaign. 

However, he said candidates needed to use public spaces to make people aware of policies in the lead-up to an election and therefore an exception should remain in place.

"Elections are a fundamental part of democracy and candidates need to get their message out," he said.