NEW YORK ( TheStreet) -- All of FedEx ( FDX) Express's new U.S. facilities will be LEED certified, the company said after unveiling the first example in its new structure in Las Vegas. LEED certification, which was established by the U.S. Green Building Council, uses several criteria to verify that a residential or commercial building was created using environmentally sensitive strategies. The construction must also demonstrate efficient use of resources such as water and energy. For its Las Vegas location, FedEx favored skylights over light fixtures and said most construction waste was recycled or reclaimed. Evaporative cooling and low-flow fixtures were also utilized to enhance efficiency. FedEx also obtained LEED Gold certification for its headquarters in Memphis under LEED standards for existing buildings. The building initiative is the latest in a series of actions taken by this member of the fuel-hungry transport sector. FedEx said it was the first in the industry to operate an all-electric delivery vehicle and maintains the largest fleet of commercial hybrid trucks in North America. Additionally, the company plans to replace its 727 aircrafts with 757s, cutting fuel use by 47%, and aims to have 30% of its jet fuel come from alternative fuels by 2030. -- Written by Melinda Peer in New York. >To contact the writer of this article, click here: Melinda Peer. >To follow the writer on Twitter, go to http://twitter.com/mpeer_greennews. >To submit a news tip, send an email to: firstname.lastname@example.org.