The UFC has announced details of its new anti-doping program that will officially begin Dec. 31.

After a partnership with U.S. Anti-Doping Agency (USADA) that began in 2015 soured, the promotion decided to cut ties and begin a new UFC anti-doping policy (UFC ADP).

According to a statement released Thursday by the promotion, sample collection will be conducted by Drug Free Sport International, with administration and sanctioning to be overseen independently by Combat Sports Anti-Doping (CSAD), headed by president George Piro.

“UFC’s goal for the Anti-Doping Policy is to be the best, most effective, and most progressive anti-doping program in all of professional sports,” UFC chief business offer Hunter Campbell said in the statement. “UFC is proud of the advancements we have made with our anti-doping program over the past eight years, and we will continue to maintain an independently administered drug-testing program that ensures all UFC athletes are competing under fair and equal circumstances. With this new iteration of the program, UFC has once again raised the bar for health and safety in combat sports.”

UFC senior vice president of athlete health and performance Jeff Novitzky was also quoted:

“This latest UFC Anti-Doping Program is the result of our continued efforts to protect the athletes who compete in the Octagon. This new program is the result of years of input and trial and error taken by UFC, our athletes, and third parties who have assisted UFC in operating the program. The anti-doping policy is a living and breathing document that will continue to evolve and adapt when clear science supports changes that can further protect UFC athletes who compete in UFC.”

MMA Junkie obtained an email Campbell sent to the UFC roster, detailing expectations for whereabouts filing and testing, which can be read below along with more details released in the public statement about the new UFC ADP.