a prior perfected security interest or other prior perfected lien that has been granted in an unrelated transaction. Nothing in this subtitle shall affect such a prior perfected security interest or other prior perfected lien, and the rights of such lien holders. (2) Failure to meet requirements Subject to paragraph (1)(D), if an asset in a cover pool does not satisfy any applicable requirement described in paragraph (1) or any other applicable standard or criterion described in this subtitle, the oversight program, or the related transaction documents, the asset shall not qualify as an eligible asset for purposes of the asset coverage test described in subsection (b)(2). A disqualified asset shall remain in the cover pool unless and until removed by the issuer in compliance with the provisions of this subtitle, the oversight program, and the related transaction documents. No disqualified asset may be removed from the cover pool after an estate has been created for the related covered bond program under section 343(b)(1) or 343(c)(2), except in connection with the management of the cover pool under section 343(d)(1)(E). (d) Other requirements (1) Books and records of issuer Each issuer of covered bonds shall clearly mark its books and records to identify the assets that comprise the cover pool securing the covered bonds. (2) Schedule of eligible assets and substitute assets Each issuer of covered bonds shall deliver to the applicable indenture trustee and the applicable independent asset monitor, on at least a monthly basis, a schedule that identifies all eligible assets and substitute assets in the cover pool securing the covered bonds. (3) Single eligible asset class No cover pool described in section 341(3)(A) may include eligible assets from more than 1 eligible asset class. No cover pool described in section 341(3)(B) may include covered bonds backed by more than 1 eligible asset class. 343. Resolution upon default or insolvency (a) Uncured default defined For purposes of this section, the term uncured