Rule Summary: Establishes requirements relating to CUSIP numbers for dealers and, in competitive offerings, municipal advisors; requires underwriter participation in the New Issue Information Dissemination Service (NIIDS); and requires submission of certain information and documents related to auction rate securities and variable rate demand obligations to the SHORT system.

Rule Summary: Prohibits municipal advisors from publishing false or misleading advertisements concerning the services of the municipal advisor or the engagement of a municipal advisory client or concerning the facilities, services or skills of any municipal advisor, establishes specific content standards for advertisements and requires a municipal advisor principal to approve, in writing, advertisement prior to first use.