The 2020–21 Promotion League season was the 9th edition (the 7th since its name change).
The number of U-21 teams permitted in this division was limited to four (until 2022) and they were not eligible to promotion.
However, the start of the season was delayed and the format of the league was modified due to the COVID-19 pandemic situation.
The table was then divided into two equal groups.
The previous season had been suspended and later cancelled due to the corona-virus measures.