On August 2, pursuant to Section 975 of the Dodd-Frank Act, the MSRB requested approval from the SEC for an interpretive notice relating to the application of MSRB Rule G-17 to underwriters of municipal securities. The notice would set forth requirements for underwriters regarding representations and disclosure to issuers. The MSRB anticipates the proposed notice will be effective 90 days after approval by the SEC. MSRB Release. MSRB Notice.