A general solicitation or advertising may be published in connection with the offer to sell or sale of the securities, provided, that at least 20 calendar days before any sale of the security, the issuer has filed with the Commissioner a notice setting forth the material terms of the proposed sale and copies of any sales and advertising literature to be used and the Commissioner, by order, does not disallow the exemption within 10 business days after the filing is received by the Commissioner.
D.C. Mun. Regs. tit. 26, r. 26-B251