At least 2 GB; 4 GB or higher is recommended for professional use.
: The software requires a professional license to be legally compliant with international shipping regulations. official website ism office 304 verified download
The International Safety Management (ISM) Code is an international standard for the safe operation of ships. Organizations often use "Office" or "Shore" manuals to implement this code, but "304" is not a standard version number for this regulation. At least 2 GB; 4 GB or higher