Md. Code, Corporations and Associations § 11–508

(a) A registration statement remains effective for 1 year after its effective date unless the Commissioner by rule or order extends the period of effectiveness. A registration statement is not effective while a stop order is in effect under §§ 11-511 through 11-513 of this subtitle.

(b) A registration statement may be withdrawn only in the discretion of the Commissioner.

(c) A registration statement that has not been made effective within 1 year from the date of initial filing may be deemed abandoned by the Commissioner.