; (ii) the cost of the Personnel Surety Program; and (iii) the results of implementing the Personnel Surety Program. . (b) Guidance Not later than 270 days after the date of enactment of this Act, the Secretary shall develop and make publicly available written guidance for seasonal employees of covered chemical facilities for purposes of complying with the requirements under section 2102(d)(2) of the Homeland Security Act of 2002 ( 6 U.S.C. 622(d)(2) ), as amended by subsection (a). 12. Security risk assessment approach and corresponding tiering methodology Section 2102(e) of the Homeland Security Act of 2002 ( 6 U.S.C. 622(e) ) is amended— (1) in paragraph (2)(A), by striking develop and inserting maintain ; and (2) in paragraph (3)— (A) in subparagraph (B)— (i) by striking information on and all that follows through the end and inserting information on— ; and (ii) by adding at the end the following: (i) how the Secretary confirmed the information was the basis for the change or determination described in subparagraph (A); (ii) all relevant inputs and assumptions under the tiering methodology; (iii) the rationale for each of those relevant inputs and assumptions; (iv) the output of the tiering methodology; and ; and (B) by adding at the end the following: (C) Notice (i) In general If an owner or operator of a chemical facility of interest submits a Top-Screen and the Secretary has not made a determination with respect to the tiering of the chemical facility of interest, or notified the owner or operator of any specific deficiency or omission of required information in the Top-Screen, by the date that is 1 year after the date on which the owner or operator submitted the Top-Screen, the Secretary shall, in writing, notify the owner or operator that— (I) the Secretary has not made such a determination