Hull KR and Hull FC will play 30 league matches next season after the RFL confirmed its new 2015 rugby league structure.
As previously revealed, Super League and the Championship will be made up of 12 teams, with divisions splitting into three 'Super 8s' after 23 matches.
In the Super 8s, the top eight will continue as Super League, the middle eight will be the Qualifiers and the third eight will be the Championship Shield.
The top four Super League clubs will play four home matches. In the Qualifiers, the team finishing 9th and 10th in Super League and the top two from the Championship have four home games.
In Super League and the Championship Shield, the competing clubs will carry over their points and scoring records from the regular season into the Super 8s. The Qualifiers will start with zero points because the eight clubs are drawn from two different competitions.
The play-offs to decide the Super League champions will be determined by the top four clubs, with first playing fourth and second vs third and the winners being in the Grand Final.
In the Qualifiers, the top three teams are guaranteed Super League status. The fourth-placed side will play the fifth-placed side in a '£1m Game', either at a neutral venue, or the home ground of the fourth-placed side.
As a result, teams will now join the Challenge Cup at different rounds, depending on their league positions.
The bottom four Super League teams enter in the fifth round, joining the 12 fourth round winners (eight ties). The top eight Super League teams enter in the sixth round, joining the eight fifth round winners (eight ties).
RFL chief executive Nigel Wood believes the changes herald a new era for the sport.
"It will ensure that every minute of every match in every competition matters," he said.
"The return of promotion and relegation in a format that is financially sustainable for all clubs should ensure fans are entertained from February to October."
