; or (B) if a plan developed by such commission is not enacted into law, the redistricting plan developed and enacted into law by a 3-judge court in accordance with section 301. (2) If any of the triggering events described in section 502 occur with respect to the State, the United States district court for the applicable venue shall develop and publish the redistricting plan for the State, in accordance with section 301, not later than December 15, 2024. (3) For purposes of section 401(d)(1), the Election Assistance Commission may not make a payment to a State under such section until the State certifies to the Commission that the nonpartisan agency established or designated by a State under section 514(a) has, in accordance with section 512(b)(1), submitted a selection pool to the Select Committee on Redistricting for the State established under section 514(b). 502. Triggering events For purposes of the redistricting carried out pursuant to the decennial census conducted during 2020, the triggering events described in this section are as follows: (1) The failure of the State to establish or designate a nonpartisan agency under section 514(a) prior to the expiration of the deadline under section 514(a)(6). (2) The failure of the State to appoint a Select Committee on Redistricting under section 514(b) prior to the expiration of the deadline under section 514(b)(4). (3) The failure of the Select Committee on Redistricting to approve a selection pool under section 512(b) prior to the expiration of the deadline under section 512(b)(7). (4) The failure of the independent redistricting commission of the State to approve a final redistricting plan for the State under section 513 prior to the expiration of the deadline under section 513(e). B Independent Redistricting Commissions for Redistricting Carried Out Pursuant to 2020 Census 511. Use of independent redistricting commissions for redistricting carried out pursuant to 2020 Census (a) Appointment of members (1) In general The nonpartisan agency established or