The Gold Coast and Newcastle rounds have been scrapped in a new-look Supercars schedule that will conclude at Bathurst in February.
After announcing that the season will resume in Sydney in June, Supercars on Sunday revealed a revised program, with 11 more rounds set to be held.
Supercars have not held a complete round since the opening Adelaide 500 in February after coronavirus shut down the season following qualifying at the Melbourne 400 at Albert Park in mid-March.
The Melbourne round will not be rescheduled while the Gold Coast 600 and Newcastle 500 have been cancelled.
"Following extensive conversations with both the Queensland and NSW governments and with local government partners, the traditional street circuit events on the Gold Coast and Newcastle have not been included in the 2020 draft calendar," a Supercars statement said.
The season is set to resume without spectators at Sydney Motorsport Park from the June 27-28 weekend.
The Bathurst 1000 is the only event to have kept its original date and four-day format on the calendar, taking place at Mount Panorama from October 8-11.
Race formats, support categories and spectator access will be confirmed closer to each event.
Supercars CEO Sean Seamer said strict measures will be in place to ensure all events are compliant with coronavirus protocols.
"We will continually assess the possibility of admitting fans to events based on the direction of government restrictions," he said.
"(But) at this stage the June event at Sydney Motorsport Park will be a television-only event with no fans in attendance."
Northern Territory Minister for Tourism, Sport and Culture Lauren Moss is hopeful fans will be able to attend the Darwin round, set to be held on August 8-9.
"We are still working towards the inclusion of crowds which will be determined closer to the proposed new date, due to the changing nature of COVID-19 restrictions," she said.
The second last round will take place in New Zealand on January 9-10 but it is yet to be confirmed whether Pukekohe Park or Hampton Downs Motorsport Park will be the host.
The series will return to Mount Panorama for the second time for the final round for a sprint event that will coincide with the Bathurst 12 Hour enduro from February 5-7.
After scrapping the Newcastle street race, Supercars opted to move the season finale to Bathurst, fulfilling a commitment to the NSW government to hold the final round in the state.
Points from the season-opening Adelaide 500 will count towards the championship.