Congress was unable to pass any of the FY'18 federal agency appropriations bills prior to the October 1 start of the new fiscal year. In order to avoid a government shut down, Congress initially passed a short-term Continuing Resolution (CR) extending through December 8, 2017 which funds government programs at the previous FY'17 levels. A subsequent CR was passed extending government funding until December 22, 2017. A third CR was passed on December 21 extending funding through January 19, 2018 and a then fourth CR through February 8. A fifth and likely last CR was passed extending through March 23.
On May 23, 2017, the Trump Administration released its formal FY'18 budget request. This follows the March 16 release of a preliminary "skinny budget".
On July 11, the House THUD (USDOT) Subcommittee introduced, marked-up, and voted out of committee its version of a FY'18 appropriations bill for US DOT. On July 17, the bill was approved by the full House Appropriations Committee.
On July 25, the Senate THUD (USDOT) Subcommittee introduced, marked-up and voted out of committee its version of a FY'17 appropriations bill for US DOT. On July 27, the bill was approved by the full Senate Appropriations Committee.