The Belfast-based meeting will form the opening round of the British Rally Championship over the Easter weekend from April 2-3.
It will be the first time that the BRC has commenced on a sealed surface in 40 years.
Following the Circuit of Ireland, the series will then move on to the Corbeau Seats Rally Tendring and Clacton in the south of England, with the Jim Clark Rally in Scotland hosting round three at the end of May.
Following a mid-season break, the series will resume with the Nicky Grist Stages in July.
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A new addition to the calendar is the Aberdeen-based Grampian Forest Rally in August ahead of Rally Yorkshire in Scarborough and the Cambrian Rally in Wales, as the season concludes in October.
Mull Rally on the Isle of Mull is the reserve round for 2021.
Crews in R5 and Rally2 cars feature in the main class next year with R2 and Rally4 cars in the Junior BRC.
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