ULA operates orbital launch sites at Cape Canaveral Space Force Station in Cape Canaveral, Florida, and Vandenberg Air Force Base near Lompoc, California. In Florida, ULA has used Space Launch Complex 41 for Atlas V launches since its maiden flight in August 2002, and Launch Complex 37 for Delta IV launches since the rocket's maiden flight in November 2002. Ageing infrastructure and low flight cadence from LC-37 contributed to a number of delays in the launch of NROL-44. ULA is looking to mitigate this with improvement to their operations readiness process. The company has two launch pads at Vandenberg as of November 2020. These include Space Launch Complex 3 for Atlas launches and Space Launch Complex 6 for Delta IV and Delta IV Heavy launches. Space Launch Complex 2 is no longer in active use by ULA since the retirement of the Delta II in September 2018.