All of the Java code (class) files are located in the "gov" folder of the MOVES folder. In addition, there are calculators and generators located in the "calc" folder which have been written in the GO language. All of the MySQL calculators and generators are located in the "database" folder.
Please note that any changes to the code may affect the operation of MOVES in unintended ways. For SIP and conformity purposes, the only approved version of MOVES is posted on the EPA's MOVES website and described in the supporting policy guidance documents posted there.