On July 26, the MSRB filed a proposed rule change with the SEC to establish a new interim municipal advisor assessment program under Rule A-11 and a Form A-11-Interim to be used in connection with such an assessment. The MSRB has requested that the SEC approve the proposed interim assessment for effectiveness on October 1. Assuming an effective date of October 1, a municipal advisor would be required to submit a completed Form A-11-Interim and to remit payment for the interim assessment by November 30. MSRB Notice.