The East Belfast MLA has said: "This is a solution that Alliance has previously suggested to remove the immediate strain on motorists and enable the system to catch up on itself.
"This progress has also been made with the continued hard work of DVA staff to offer more appointments over weekends and bank holidays, and the recruitment of more vehicle examiners to increase testing capacity.
"Alliance has long been supportive of exploring biennial testing on a pilot basis to improve the overall efficiency of the MOT system and ensure the DVA can sustainably manage MOT demand going into the future."