SIFMA provides comments to the Securities and Exchange Commission (SEC) on proposed rule changes by the Municipal Securities Rulemaking Board (MSRB) that would permit issuers and their designated agents to make voluntary submissions to the primary market disclosure service of: 1) preliminary official statements, related pre-sale documents and other primary market documents; and 2) additional categories of disclosure as well as related indexing information about their continuing disclosure undertakings that would be displayed on the MSRB’s Electronic Municipal Market Access system (EMMA) Web portal and included in EMMA’s disclosure subscription service. SIFMA supports the proposed rule changes as they are intended to provide greater transparency to potential investors in the municipal securities markets, File No. SR-MSRB-2009-010.