; and (B) does not contain a commercially manufactured incinerator or other equipment specifically designed and manufactured for the burning of solid waste. . (b) Effective date (1) In general The amendment made by subsection (a) shall take effect on the date that is 180 days after the date of the enactment of this Act. (2) Written petitions With respect to a written petition described in section 1119(b)(1) of title 38, United States Code, as added by subsection (a), that was received by the Secretary of Veterans Affairs before the effective date described in paragraph (1), the Secretary shall make a request of the National Academies of Sciences, Engineering, and Medicine under such section, as so added, not later than 90 days after such effective date. (c) Clerical amendment The table of sections at the beginning of chapter 11 of title 38, United States Code, is amended by inserting after the item relating to section 1118 the following new item: 1119. Presumption of service connection for certain diseases associated with exposure to open burn pits and other toxins. . (d) Conforming amendment Section 1113 of such title is amended by striking or 1118 each place it appears and inserting 1118, or 1119 . 3. Agreement with the National Academies of Sciences, Engineering, and Medicine concerning the exposure of humans to open burn pits and other toxins (a) Agreement (1) In general The Secretary of Veterans Affairs shall seek to enter into an agreement with the National Academies of Sciences, Engineering, and Medicine (referred to in this section as the National Academies ) to perform the services covered by this section. (2) Timing The Secretary shall seek to enter into the agreement described in paragraph (1) not later than 60 days after the date of the enactment of this Act. (b) Reviews of scientific evidence (1) In general Under an agreement between the Secretary and the National Academies, the National Academies shall review and summarize the scientific evidence, and assess the strength thereof, concerning the