under this Act, including a behavioral code of conduct, technical standard, or other policy established by rule under section 8. (B) Publication (i) In general Subject to clause (ii), the Commission shall make a petition submitted under subparagraph (A) available to the public. (ii) Waiver The Commission may waive the requirement under clause (i) if the Commission makes the rationale for the waiver available to the public. (2) Dismissal without prejudice (A) In general Any petition submitted under paragraph (1) shall be deemed dismissed without prejudice if the Commission does not grant the petition within 18 months after the date on which the Commission receives the petition, unless the Commission extends the 18-month period under subparagraph (B) of this paragraph. (B) Extension The Commission may extend the initial 18-month period under subparagraph (A) by an additional 3 months. (3) Scope of grant authority