“The American public deserves complete answers from the FDA about its rulemaking,” Johnson wrote. He said he wants a complete response by 5 p.m. July 29.
FDA spokesman Michael Felberbaum said Friday that the agency is reviewing the letter and “will respond directly to the senator.”
Johnson’s letters could play a role in slowing, or even halting, the Aug. 8 implementation of most new FDA regulations that were disclosed May 5 for nicotine and tobacco product innovations.