The Municipal Securities Rulemaking Board (MSRB) today urged the Securities and Exchange Commission (SEC) to conduct an extensive review of the disclosure requirements in the municipal securities market outlined in SEC Rule 15c2-12. The MSRB pledged its support for a thorough review of the rule in a letter submitted to the SEC in response to a request for comment on the collection of information under the rule mandated by the Paperwork Reduction Act.