CARES does not alter or manage the NEMSIS XSDs in any way. These are managed by NEMSIS; therefore, any issues should be researched by the agency/vendor via the resources page on the NEMSIS website. Alternatively, there are tools available to validate an XML file locally against a specific XSD or XSL file. For example, Notepad ++ has plugins available to validate XML. You would use the same header on your XML file as we use on the website in the sample XML files.

Find documentation to troubleshoot NEMSIS XSD FATAL errors HERE.