Health and Human Services or the Secretary of Transportation to expand the list of authorized drug testing to include an additional substance. 6. Report on hair testing guidelines Not later than 30 days after the date of enactment of this Act, and every 30 days thereafter until the date that the Secretary of Health and Human Services publishes in the Federal Register a final notice of scientific and technical guidelines for hair testing in accordance with section 5402(b) of the Fixing America's Surface Transportation Act ( Public Law 114–94