The present document provides guidance on the selection of standards and their options to organizations wishing to establish a trust service status list@ for a particular business implementation context and associated business requirements. The present document describes the business scoping parameters relevant to this area and how the relevant standards and options for this area can be identified given these business scoping parameters. The target audience of the present document includes those potentially requiring support from trust services and in particular trust service status lists. The present document provides an explanation of how related standards can be used to meet the business needs.