First, NASCAR doesn't own any numbers. Team owners register a number when they start a team, and NASCAR either approves/denies their request for that number. For instance, nobody can run a three digit number in any NASCAR Series. So, you are left with 00 to 99 as your choices.
Second, each year, RCR registers the No. 3 number in Sprint Cup Series. But, since they never enter it in a race, it never shows up on the Owner's Points
Third, or should I say No. 3 and hold up three fingers while doing so, IF RCR chooses to bring back the No. 3 to Sprint Cup Series action, they would need to submit the paint scheme and number to NASCAR for approval. IF they they choose to use the same No. 3 driven to fame by Dale Sr., then that is up to them as they are the registered owners of that TEAM, not the number.
Other random points -
* To repeat what Dale Jr. said, "There are 10 and 11-year old kids out there that have no idea who Dale Earnhardt is. If Richard wants to run that number, I don't have a problem with him doing that."
* Let's say RCR does run a No. 3 in Sprint Cup, it would be a great way to introduce Dale Earnhardt to all those young kids who have only seen Austin and Ty Dillon running that digit. Thus, it would be a nice bridge between the past and present. Who knows, maybe one of those kids would Tweet about it...

* It's a number, it's being kept in the RCR family and utilized by the team who made it most famous. Not some random team who just wants the number to garner attention and exposure - good and bad.
* IF it's to be brought back into competition, who better than a family member of RC himself?
Just my thoughts, but I don't much about this NASCAR stuff....
