The United States Anti-Doping Agency (USADA) says it wants more flexible rules for athletes who test positive for cannabis after the White House was reported to be seeking a meeting with the World Anti-Doping Agency (WADA) to discuss easing restrictions.

The debate over cannabis use by athletes was reignited after American sprinter Sha’Carri Richardson tested positive for the drug last month at the U.S. Olympic Track & Field trials.

The 21-year-old, who was seen as the top contender for the 100 metres gold at the July 23-Aug. 8 Tokyo Games, got a one-month ban, making her ineligible for the U.S. team.

Sha'Carri Richardson celebrates winning the women's 100m final at the 2020 U.S. Olympic Track & Field Team Trials at Hayward Field on June 19, 2021 in Eugene, Oregon.

Richardson said in an NBC Interview that her action came while she was dealing with the news of the death of her mother.

The suspension sparked an outpouring of sympathy, including from President Joe Biden, and calls for a review of anti-doping rules from the White House according to the Financial Times.

The White House did not respond to a request for comment.

USADA has for over a decade taken a hard line on cannabis use by athletes, insisting it remains on the prohibited list.