; or (2) limiting or otherwise affecting any authority of the Secretary of Health and Human Services or the Secretary of Transportation to expand the list of authorized substance testing to include an additional substance. 8106. Status reports on hair testing guidelines (a) In general Not later than 60 days after the date of enactment of this Act, and annually 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 ; 129 Stat. 1312), the Secretary of Health and Human Services shall submit to the Committee on Commerce, Science, and Transportation of the Senate and the Committee on Transportation and Infrastructure of the House of Representatives a report on— (1) the status of the hair testing guidelines; (2) an explanation for why the hair testing guidelines have not been issued