Your morning transportation speed-read:

Lawmakers flooded the FAA with pleas to keep open their local towers, documents obtained by The Hill show.

Senators examining the future of driverless cars said they held “great potential” but also expressed uncertainty about safety issues for the new technology during a key committee hearing Wednesday.

"In recent years, we have seen advances in vehicle technology that show great potential – not only to save the lives of many more but also to revolutionize how we have come to understand the relationship between the driver and his car," Chairman Jay Rockefeller (D-W. Va.), said during a Senate Commerce, Science and Transportation Committee hearing on the policy implications of self-driving vehicles.

The nation's nuclear watchdog wants to issue new rules on transporting radioactive material to bring the United States in line with international standards.

The changes to the Nuclear Regulatory Commission's (NRC) rules would meet 2009 revisions to regulations from the International Atomic Energy Agency (IAEA), the global nuclear energy organization, as well as 2011 regulations from the Department of Transportation.

The Senate committee that oversees transportation issues will hold a confirmation hearing newt week for President Obama's Transportation Secretary nominee, Charlotte Mayor Anthony Foxx (D).

Senate Commerce, Science and Transportation Committee Jay Rockefeller (D-W.Va.) said on Wednesday that the hearing would be held on May 23.

Foxx was nominated by Obama last month to replace retiring Transportation Secretary Ray LaHood. 

The American Beverage Institute said lowering the limit for drivers to 0.05 would “criminalize perfectly responsible behavior.”

The bill faces an uncertain future in the House, were lawmakers are concerned about the discretion it would give Obama.

Your morning transportation speed-read:

Boeing has resumed deliveries of its 787 "Dreamliner" to airlines, the company said on Tuesday.

Boeing said it delivered a new version of the plane, which was grounded for months by Obama administration transportation officials, to the Japanese airline ANA.

ANA was flying one of the initial 787s that developed battery problems that prompted the Federal Aviation Administration (FAA) and other international aviation agencies to order airlines to stop flying the airplane model worldwide.

Boeing said on Tuesday that it had made its first delivery of a 787 since the FAA and other agencies began approving its redesign of the plane's lithium batteries.