→Control rooms: uppercase per link
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Launch operations are supervised and controlled from several control rooms (also known as a firing room). The controllers are in control of pre-launch checks, the booster and spacecraft. Once the rocket has cleared the launch tower (usually within the first 10–15 seconds), is when control is switched over to the [[Mission Control Center]] at the [[Johnson Space Center]].
Extensive renovation of Control Room 4 was finished in 2006.<ref>{{
Firing room 4 is currently{{When|date=April 2021}} leased by [[SpaceX]] and serves as their primary launch control center.<ref>{{cite press release |date= May 30, 2020 |title= NASA Astronauts Launch from America in Historic Test Flight of SpaceX Crew Dragon |url= https://www.nasa.gov/press-release/nasa-astronauts-launch-from-america-in-historic-test-flight-of-spacex-crew-dragon
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