The 141st Air Control Squadron (ACS) is a unit of the Puerto Rico Air National Guard. It is a mobile radar command, control and communications element of the United States Air Force Theater Air Control System located at Rafael Hernandez Airport formerly Ramey Air Force Base in Aguadilla, Puerto Rico. The unit can be tasked by the Control and Reporting Center (CRC) to perform the following tasks: Battle management, weapons, surveillance, identification, and data link management. It also, can be assigned to deploy and operate directly subordinate to Air Operation Center.