PSV accessibility certificate (DDA1) application Date published: 07 December 2021 Application for a Public Service Vehicle (PSV) accessibility certificate (DDA1) Documents Public service accessibility certificate (DDA 1) application Adobe PDF (212 KB) Help viewing documents Share this page Share on Facebook (external link opens in a new window / tab) Share on Twitter (external link opens in a new window / tab) Share by email (external link opens in a new window / tab)