; 116 Stat. 2135) is amended by striking the item relating to section 2109 and inserting the following: Sec. 2109. Explosive materials. . 17. Informal consultations and assessments (a) In general Section 2102 of the Homeland Security Act of 2002 ( 6 U.S.C. 622 ) is amended by adding at the end the following: (f) Informal consultations and assessments (1) In general The Secretary shall implement a system under which, in accordance with this paragraph and except as provided in paragraph (2), the Secretary shall provide an owner or operator of a covered chemical facility the opportunity for an informal consultation relating to a preliminary deficiency determination under subsection (c) with respect to the covered chemical facility. (A) Written explanation and request procedure (i) Written explanation Upon making a preliminary deficiency determination under subsection (c) with respect to a site security plan of a covered chemical facility, the Secretary shall provide to the owner or operator of the covered chemical facility a written explanation of the reasons for the determination. (ii) Request Not later than 10 days after receiving a written explanation of a preliminary deficiency determination under clause (i), an owner or operator of a covered chemical facility may request an informal consultation with the Secretary to seek a modification of the preliminary deficiency determination. (iii) Civil enforcement Upon receipt of a request under clause (ii), the Secretary shall not seek civil enforcement under section 2104 with respect to the preliminary deficiency determination under subsection (c) of this section to which the request pertains, except as provided in subparagraph (D)(ii) of this paragraph. (B) Opportunity for resubmission (i) In general An owner or operator of a covered chemical facility requesting an informal consultation under subparagraph (A)(ii) may, during the period beginning on the date on which the owner or operator submits the request and ending at the conclusion of the informal consultation,