Almost half a million dollars was spent spruiking the government's new transport network in the first half of the year.
A biannual report, prepared by independent reviewer Professor Dennis Pearce, recently tabled in Parliament said the government spent more than $1 million on advertising campaigns from January to June.
Professor Pearce reviews all the government's advertising campaigns to ensure they meet relevant standards, for example not spending taxpayers' money on party political material.
While no campaigns were ultimately found to have breached the relevant legislation, he did make recommendations about draft material relating to the government's budget campaign, which he believed contained elements that were party political.
Of the $1,087,000 spent in the period, $468,813 was spent on advertising campaigns for the new light rail and bus network, the report said.
The advertising was placed in print media, radio, TV, social media and online, including on Transport Canberra's Facebook and Twitter pages and ACT government screens.
"Transport Canberra funded advertising promoting the launch of the new public transport network, timetable and new light rail services commencing," a government spokesman said.
"The advertising coincided with the biggest change to the public transport network since 1999, and it is the role of the government to ensure that public transport users, and potential users of public transport, are informed about changes that may impact on them."
The government's monthly newsletters delivered to homes - tailored to five different regions - cost taxpayers $264,000 to produce, according to the report.
Professor Pearce said he was informed government research showed 20 per cent of Canberrans would prefer to receive government information at home.
He noted the newsletter contained an introductory paragraph for the Chief Minister. The government spent more than $40,000 advertising its budget, including sending 188,098 "postcards" to homes across the territory telling them what was in the budget for their region.
Professor Pearce said such campaigns must avoid to presenting material that has an underlying message that the government was doing a good job and therefore should be re-elected.
But he noted people also needed to be informed about government programs and services.
Professor Pearce said some parts of the draft materials had a party political element, meaning they were designed to promote, advance or enhance ACT Labor's reputation rather than inform the public. As a result the final campaign was altered.
"I do not consider that the documents to be used in the campaign stray beyond the line of informing the public into the area of inviting party support. Accordingly, I consider that the requirements of the act are not breached," he said.