Zone 1, has since 2015 been designated for use for Falcon 9 first-stage booster landings. Vandenberg Space Launch Complex 4 (SLC-4E) leased in 2011, is used for payloads to polar orbits. The Vandenberg site can launch both Falcon 9 and Falcon Heavy vehicles, but cannot launch to low inclination orbits. The neighboring SLC-4W has been converted to Landing Zone 4 since 2015, where SpaceX has successfully landed three Falcon 9 first-stage boosters, the first in October 2018. On 14 April 2014, SpaceX signed a 20-year lease for Launch Complex 39A. The pad was subsequently modified to support Falcon 9 and Falcon Heavy launches. SpaceX launched its first crewed mission to the ISS from Launch Pad 39A on 30 May 2020. Pad 39A has been prepared since 2019 to eventually accommodate Starship launches. With delays in launch FAA permits for Boca Chica, the 39A Starship preparation was accelerated in 2022. SpaceX manufactures and flies Starship test vehicles from Starbase at Boca Chica, Texas, with future plans to conduct orbital Starship flights in 2021. SpaceX first publicly announced plans for a launch facility near Brownsville, Texas in August 2014. The Federal Aviation Administration (FAA) issued the permit in July 2014. SpaceX broke ground on the new launch facility in 2014 with construction ramping up in the latter half of 2015, with the first suborbital launches from the facility in 2019. Some residents of Boca Chica Village, Brownsville, and environmental activists criticized the site along with Starship development program in various aspects. Contracts SpaceX won demonstration and actual supply contracts from NASA for the International Space Station (ISS) with technology the company developed. SpaceX is also certified for U.S. military launches of Evolved Expendable Launch Vehicle-class (EELV) payloads. With approximately 30 missions on the manifest for 2018 alone, SpaceX represents over US$12 billion under contract. Cargo to ISS In 2006, SpaceX won a NASA Commercial Orbital Transportation Services (COTS) Phase 1 contract to demonstrate cargo delivery to the International Space Station (ISS), with a possible contract option for crew transport. Through this contract, designed by NASA to provide "seed money" through Space Act Agreements for developing new capabilities, NASA paid SpaceX US$396 million to develop the cargo configuration of the Dragon spacecraft, while SpaceX developed the Falcon 9 launch vehicle with their own resources. These Space Act Agreements have been shown to have saved NASA millions of dollars in development costs, making rocket