On August 31, the official CFA League One announced that VAR (Video Assistant Referee) technology will return to the CFA League One pitch in this round and will be featured in select key matches.
According to the previously announced officiating assignments for Round 21 of the CFA League One, the home match of Dalian Yingbo against Liaoning Tieren is equipped with two VAR referees, who are He Kai and Zhang Xuesen.