The US has never had a contract with an individual manufacturer for a single rail vehicle, but that’s changing.

A group of US senators is introducing legislation to allow the Department of Transportation to contract out the construction of its own trains to companies in Europe and Asia.

It’s part of a wider push to make the transportation system more responsive to the needs of the 21st century.

It comes as the Obama administration has been under fire for its use of taxpayer money to build and operate some of the most expensive high-speed trains in the world.

The program has cost the US at least $2.4 trillion, according to the Government Accountability Office.

This includes the construction, maintenance and operation of some 10,000 miles of track across the country, a new railroad that was supposed to be finished in 2024, and the construction and operation on the New Jersey-New York metro system.

That’s the longest line in the US, stretching from the East Coast to New England, and covering about 12 million square miles.

It was supposed last year to be built with $8.7 billion in federal funding, but lawmakers in the Senate have called for it to be turned over to private companies.

The American Public Transportation Association (APTA) has said that the current contract is outdated, that there are insufficient funding and that it would be more cost-effective to make that money available to private entities.

The senators’ bill calls for the department to purchase private equipment and train designs from a network of companies in Asia and Europe.

The bill also calls for a pilot program that would be run in 2021 for one year, and a two-year program in 2022 for one-quarter of the length of the contract.

The contracts would be awarded using the same process used for other major infrastructure projects, including the construction for the Panama Canal and the New York City subway system.

It also calls on the department and the Federal Railroad Administration to work together to design a new design for the nation’s rail network that would allow for more predictable and predictable costs, which would allow the government to keep costs down.

The train manufacturer that would become responsible for the construction work is a subsidiary of German company Daimler.

The company has worked with the US for decades to develop high-performance, high-capacity railroads and is well known for its high-voltage trains.

The railroads are able to run at a higher speed and are quieter than other types of rail cars, according the APTA.

It has been in operation since 1934, and it is currently the world’s largest private passenger rail company.

The department has said the trains could save up to $3,000 per hour per mile, and that their design would also be easier to maintain and repair.

The DOT has a $7.8 billion backlog for the train program, and some of it is expected to be used for the 2020 Olympics.