(Bloomberg) -- The National Aeronautics and Space Administration said it isn’t aware of drug use at Elon Musk’s SpaceX that could jeopardize the rocket launch and satellite-service provider’s government contracts.

“The agency does not have evidence of non-compliance from SpaceX on how the company addresses the drug- and alcohol-free workforce regulations,” the National Aeronautics and Space Administration said Thursday in a statement. “We expect our commercial partners to meet all workplace safety requirements in the execution of those missions and the services they provide the American people.”

Questions about Space Exploration Technologies Corp.’s compliance with drug-free workplace requirements resurfaced after the Wall Street Journal reported early this month about Musk’s history of recreational drug use, including ketamine, LSD, cocaine, ecstasy and psychedelic mushrooms.

Musk posted Friday on X, the social media network formerly known as Twitter, that he and SpaceX employees have passed random drug tests for years.

Read more: Elon Musk’s Drug Use Is the Latest Headache for Tesla’s Board

NASA said in its statement that it enforces and verifies compliance with alcohol- and drug-free workplace contract clauses that mandate contractors maintain a “robust and effective” corporate culture and safety program.

--With assistance from Loren Grush.

(Updates with Musk’s post in the fourth paragraph.)

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