Workers tasked with road maintenance, litter collection, sports ground maintenance and park mowing in the ACT could walk off the job in weeks after pay talks with the government stalled.
The CFMEU said strikes could begin in the coming weeks if pay talks don't progress after 300 of its members voted in a protected action ballot, with 99 per cent supporting industrial action.
The general service officers want a 5 per cent pay rise this year, followed by 4 per cent in 2027 and 3 per cent in 2028, along with a pay allowance for front-line workers, the union said.