ANCHORAGE, Alaska >> Iditarod officials today identified four-time champion Dallas Seavey as the musher whose dogs tested positive for a banned substance.

The Iditarod Trail Committee met today in an emergency meeting and decided to release the musher’s identity after initially refusing on a lawyer’s advice.

“Because of the level of unhealthy speculation involved in this matter, ITC has now decided to disclose the name of the musher involved,” the committee said in a statement.

Calls to Seavey’s cellphone weren’t immediately returned.

He will be allowed to participate in next year’s race and will not face any disciplinary action.

As a result of the positive test findings, the race rule dealing with canine drug use was revised earlier this month to hold mushers liable for any positive tests in future races unless the mushers can prove the results happened because of something outside of their control.

Previously, the rule could be interpreted to require that race officials provide proof that a musher intended to administer the prohibited substance.

Officials say four dogs in Seavey’s team tested positive after the finish of this year’s Iditarod Trail Sled Dog Race in Nome in March. The banned substance was the opioid pain reliever, Tramadol.

Organizers relented after scores of professional mushers ay demanded that race officials identify the musher.

A statement from the Iditarod Official Finishers Club was signed by 83 current and former competitors who called for the musher to be named within 72 hours.

The demand came after the group met Sunday to discuss how organizers of the nearly 1,000-mile (1,609-kilometer) race handled its first instance of dogs testing positive for a banned drug.

“It is unacceptable that multiple dogs tested positive for a drug in a single musher’s team and that that information was only recently made public when it was known since shortly after the team finished,” the club’s statement said.

The dog team was tested six hours after finishing the race in Nome, officials said. Race officials have estimated the drug could have been administered 15 hours or less before the test.

Seavey, who was not among the mushers who signed the finishers club statement, won the Iditarod in 2012, 2014, 2015 and 2016. He finished second last year to his father, Mitch, and has had nine straight top 10 finishes.

Dallas Seavey is a former Alaska high school wrestling champion and also spent a year at the U.S. Olympic Training Center before turning his attention back to dogs. He lives in Willow, a community located about 50 miles north of Anchorage and widely considered to be the dog mushing capital of the nation.

Only the first 20 teams to reach Nome are tested, leading to a feeling among mushers that any of them could be suspected because the musher whose dogs failed the test was not identified, mushers said.

Officials had initially refused to identify the musher because they said it was unlikely they could prove the musher intentionally administered the drug and because a lawyer advised them not to make the name public.

The Iditarod began testing sled dogs for prohibited substances in 1994. Dogs on all teams are subject to random testing between pre-race examinations and along the race trail. Testing in Nome for top finishing teams, however, is not random but expected.