After a program is successfully compiled it is ready for immediate execution with the ACUCOBOL-GT runtime. There is no link step. See Using the Runtime System for details on using the runtime.

On UNIX, Linux, and OpenVMS systems, the runtime executable file is named runcbl or runcbl.exe. On some UNIX systems the runtime is provided as a shared object library named or libruncbl.a.

Several distinct runtimes are available for Windows systems. Each is licensed separately.