Official Statement (OS) : A document normally required for each new Issue which contains information about the nature of the security being offered and the pledged sources of payment behind the security
Ilan Kelman (ed.), Vulnerability and Resilience Definitions and References, Version 2, 2007. http://www.islandvulnerability.org/docs/vulnres.pd f, (Vulnr and Resilience - Brit) {524}