Validation Keywords in the Jaguar Input File
These keywords are used in conjunction with the valid section, and are not intended for general use.
The keywords valid_guess, valid_hess, and valid_rwr_svd control whether or not validation is done for these sections, or whether these sections are always removed. The keyword valid_sections controls whether or not validation is done for all dependent sections, or whether all such sections are removed, overriding settings for individual sections.