From the February 2017 Board minutes:
The Board VOTED to create two additional Rally classes – the Intermediate class and the Master class. In terms of difficulty, the Intermediate class is between the current Novice and Advanced classes. The Master class will be more difficult than the Excellent class. There will be titles associated with these new classes. In addition, a Rally Championship prefix title (RACH) is recommended for dogs that achieve a given number of triple Qs (qualify in the Advanced, Excellent and Master class at the same trial) plus earn a given number of points from the Master class. Clubs may start to apply for events with these new classes on August 1, 2017 for events held on or after November 1, 2017.