Since the 1st April 2009, Approved Contractor Scheme (ACS) approval via the Passport Certificate route is available to firms from SSAIB. Firms seeking ACS approval will have a choice of three routes: 1. The current standard ACS route. Using this option, firms complete the Self-Assessment Workbook (SAW) before making an application to the SIA for approval. SIA approve or reject the applicat …[more]