H.R. 3403 — A bill to amend title 49, United States Code, to allow motor carriers to use hair testing as a method of detecting the use of controlled substances by operators of commercial motor vehicles, and for other purposes; to the Committee on Transportation and Infrastructure.

Cosponsors added, H1720 [10FE], H2302 [11MR], H5725 [24JN], H7389 [9SE]