Nemechek made 18 Xfinity starts in 2018 with Chip Ganassi Racing while Briscoe made 17 with Stewart-Haas Racing and Roush Fenway Racing.
Nemechek will compete for GMS Racing in the No. 23 Chevrolet. Briscoe will drive the No. 98 Ford for Stewart-Haas Racing.
When Nemechek was announced on Dec. 6 as joining GMS Racing, a team press release said he would compete for Rookie of the Year. But a NASCAR spokesperson said his eligibility had not been decided on at the time.
The Rookie of the Year title was not mentioned in SHR’s Nov. 27 press release about Briscoe going full-time.
Briscoe said in an Q&A on Reddit he was “honestly surprised” he was approved.