The Gypsy King was handed an ultimatum by the governing body, who insisted the belt would not be on the line if he failed to enrol.
But WBC president Mauricio Sulaiman has confirmed Fury, 30, has submitted the necessary forms to the Voluntary Anti-Doping Association [VADA].
Undefeated Fury – who has won 27 bouts – will now land one of the world titles he was stripped of during his time away from the ring after he beat Wladimir Klitschko in 2015 with victory.
He will take on KO king Wilder, 32, in LA's Staples Center on December 1.
The American also boasts a perfect record, with 39 of his 40 wins coming inside the distance.
Fury's pal Billy Joe Saunders tested positive for oxilofrine in a check administered out of competition by VADA.
The Brit's team insisted a nasal spray was to blame and his WBO middleweight title defence against Demetrius Andrade on October 20 is set to go ahead.
Confident Fury has hit out at critics who believe he is just fighting Wilder for a payday.
He said: “This is a message for everyone, I’ve never fought or spared anyone who I couldn’t beat.
"Remember what I told you many times before!"
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