This is another active area for the department. We have a very broad greening government agenda that we are supporting, and it entails buildings and building materials as well as vehicles.
With respect to vehicles, we've been significantly increasing the procurement of both hybrid and electric vehicles, having purchased over 1,200 in the last three years. We've made both hybrid and battery electric vehicles available on standing offers for other departments.
We've also been working on the infrastructure that supports the use of electric vehicles. We've installed over 260 charging stations in federal facilities so they're available not only for the government fleet but also for other uses in and around federal buildings. It's a multipronged effort. It's still hampered somewhat by the evolving capability in the industry and the production capacity, so we've had a few setbacks, but we look forward to doing even more in this space in the coming months.