distribution, and activities similar to all the foregoing as they relate to fish or shellfish facilities. An employee described in this clause shall not be counted for purposes of clause (i). (iv) Extensions (I) On request Upon request by an employer having 50 or fewer employees, the Secretary shall allow a one-time 6-month extension of the effective date set out in this subparagraph applicable to such employer. Such request shall be made to the Secretary and shall be made prior to such effective date. (II) Following report If the study under section 814 of title VIII of division B of the Secure the Border Act of 2023 has been submitted in accordance with such section, the Secretary of Homeland Security may extend the effective date set out in clause (iii) on a one-time basis for 12 months. (v) Transition rule Subject to paragraph (4), the following shall apply to a person or other entity hiring, recruiting, or referring an individual for employment in the United States until the effective date or dates applicable under clauses (i) through (iii): (I) This subsection, as in effect before the enactment of title VIII of division B of the Secure the Border Act of 2023. (II) Subtitle A of title IV of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 ( 8 U.S.C. 1324a note), as in effect before the effective date in section 807(c) of title VIII of division B of the Secure the Border Act of 2023. (III) Any other provision of Federal law requiring the person or entity to participate in the E-Verify Program described in section 403(a) of the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 ( 8 U.S.C. 1324a note), as in effect before the effective date in section 807(c) of title VIII of division B of the Secure the Border Act of 2023, including Executive Order 13465 ( 8 U.S.C. 1324a note