“ Testing Requirements- Any non-Federal alcohol and drug testing program of a railroad carrier must provide that all post-employment tests of the specimens of employees who are subject to both the program and chapter 211 of this title be conducted using a scientifically recognized method of testing capable of determining the presence of the specific analyte at a level above the cut-off level established by the carrier. ”

“ Development and use of rail safety technology ` (a) In General- Not later than 1 year after enactment of the Railroad Safety Enhancement Act of 2008, the Secretary of Transportation shall prescribe standards, guidance, regulations, or orders governing the development, use, and implementation of rail safety technology in dark territory, in arrangements not defined in section 20501 or otherwise not covered by Federal standards, guidance, regulations, or orders that ensure the safe operation of such technology, such as-- ` (1) switch position monitoring devices or indicators ”

“ Study- Not later that 2 years after the date of enactment of this Act, the Secretary shall transmit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate a report containing the results of a study to determine whether-- (1) the required intervals of track inspections for each class of track should be amended; (2) track remedial action requirements should be amended ”

“ Crafts and Classes to Be Considered- As part of the report, the Secretary shall consider-- (1) car repair and maintenance employees; (2) onboard service workers; (3) rail welders; (4) dispatchers; (5) signal repair and maintenance employees ”