File util.F contains the utility module. It is exercised in stand alone mode by script run_util which enables option test_util. The module is a collection of various subroutines or utilities used throughout MOM. All output from these utilities is passed through argument lists. Input to the utilities is also passed through argument lists, except for dimensional information which is passed by including file size.h within each utility. The include file is used for purposes of parallelization. If it were not for this include file, this module would be truly ``plug compatible'' and highly portable. The following is a summary of subroutines within the utility module: