The Unified Archive is a consolidated scripting interface for CMAQ. The Unified Archive interface refines the compiling of the CMAQ programs and the necessary libraries (except for the netCDF library) into a single Makeall script. The Makeall script is edited with a text editor similar to the original C-shell scripts. The Makeall script can be configured to either compile all of the CMAQ programs and libraries with one execution or to only compile selected system components. There is also a master run script that consolidates the running of all the programs into a single script. The Unified Archive is designed to be simpler and faster than editing each individual build and run script as in the original C-shell interface. The Unified Archive contains all past releases of CMAQ and allows the user to optionally choose which version of CMAQ to compile.