; and (ii) if any unsafe concentration of pollution is identified, halt the sale of credits to entities— (I) within the identified area; or (II) that purchase electricity from a facility that would exacerbate pollution in the identified area, as determined by the Administrator. (3) Delegation The Administrator may delegate to an appropriate market-making entity the administration of a national tradeable fossil fuel energy credit market for purposes of creating a transparent national market for the sale or trade of fossil fuel energy credits. (h) Fossil fuel energy credit retirement (1) In general Any retail electric supplier that obtains legal rights to a fossil fuel energy credit may retire the fossil fuel energy credit in any calendar year. (2) Use of retired fossil fuel energy credit A fossil fuel energy credit retired under paragraph (1) may not be used for compliance with subsection (b) in— (A) the calendar year in which the fossil fuel energy credit is retired; or (B) any subsequent calendar year. (i) Information collection The Administrator may collect the information necessary to verify and audit— (1) the annual fossil fuel energy sales or generation of any retail electric supplier; (2) a fossil fuel energy credit submitted by a retail electric supplier pursuant to subsection (b)(1); (3) the validity of a fossil fuel energy credit submitted for compliance by a retail electric supplier to the Administrator; and (4) the quantity of electricity sales of all retail electric suppliers. (j) State programs (1) In general Nothing in this section diminishes any authority of a State or political subdivision of a State— (A) to adopt or enforce any law (including regulations) respecting electricity