GMS Racing President Mike Beam issued a team statement, saying: “GMS fully supports NASCAR’s policy on substance abuse and we do not condone this type of behavior. First and foremost, our entire organization wants to apologize to NASCAR, our sponsors, teammates and fans due to this policy violation. … A substitute driver will be announced at a later date.”

Gallagher's statement after the announcement was as follows:
“I recently have had a positive result in a NASCAR drug screen which has violated NASCAR’s substance abuse policy,” Gallagher said. “I want to assure everyone in the NASCAR community this one time error in judgement will never happen again. I am taking the steps to enroll in the Road to Recovery program supported by NASCAR. I would like to say that I am sorry to all of the GMS organization for my actions, especially my team and team owner, who have worked so hard this year and have put faith in me. I also want to apologize to NASCAR, Chevrolet and my fans for letting them down. I have not upheld the behavior that is expected of me. I promise you all here and know, I will do whatever it takes to make this right.”

Gallagher's career to this point includes 49 Xfinity races, plus 59 Truck series starts.