The new steps are “out of an abundance of caution,” DHS Secretary Johnson said.
The companies say the selection process was "fundamentally flawed."
DOT chief Anthony Foxx says annual road spending should be higher than proposed.
The decrease was offset by a 271,000 increase in overall jobs.
Eric Schneiderman is investigating whether Exxon lied about its knowledge of climate change.
The 2016 hopeful said transportation funding should be left to states.
ISIS has taken responsibility for the incident.
The bill calls for spending $261 billion on highways and $55 billion on transit over six years.
The House is scheduled to vote Thursday on the multiyear transportation funding package.
The "devolution" proposal called for reducing the gas tax by nearly 15 cents.
The proposal transfers authority from the GSA to the transportation department.
The proposal would put lawmakers on record on the idea of drastically cutting the fuel levy.
At least two budget carriers are charging extra fees between Thanksgiving and New Year's Day.
The research could go toward self-driving cars or other robotics projects.
The Kremlin had previously dismissed claims that ISIS downed Metrojet Flight 9268.
"We're taking that very seriously," the president said.
Capitol Hill is largely supportive of the initial conclusions linking ISIS to the crash.
Lawmakers are hoping to conference quickly ahead of a Nov. 20 deadline for renewing federal road...
A number of high-profile car hacks have thrust the issue into the limelight.
The measure calls for spending $261 billion on highways and $55 billion on transit.
The chamber rejected an amendment to block a proposal to lower the minimum driver age.
The plan would have increased the fuel tax by 15 cents to help pay for roads.
The plane "may well have been brought down by an explosive device."
The proposal would have increased the gas tax by 15 cents.