24 C.F.R. § 267.19
(a) Definitions. For purposes of this section, the following definitions shall apply:
Community-focused residential mortgage means a residential mortgage exempt from the definition of “covered transaction” under § 1026.43(a)(3)(iv) and (v) of the CFPB's Regulation Z (12 CFR 1026.43(a)).
First pay class means a class of ABS interests for which all interests in the class are entitled to the same priority of payment and that, at the time of closing of the transaction, is entitled to repayments of principal and payments of interest prior to or pro-rata with all other classes of securities collateralized by the same pool of first-lien residential mortgages, until such class has no principal or notional balance remaining.
Inverse floater means an ABS interest issued as part of a securitization transaction for which interest or other income is payable to the holder based on a rate or formula that varies inversely to a reference rate of interest.
Qualifying three-to-four unit residential mortgage loan means a mortgage loan that is:
(b) This part shall not apply to:
(1) U.S. Government-backed securitizations. Any securitization transaction that:
(ii) Involves the issuance of asset-backed securities that:
(5) Pass-through resecuritizations. Any securitization transaction that:
(i) Is collateralized solely by servicing assets, and by asset-backed securities:
(6) First-pay-class securitizations. Any securitization transaction that:
(i) Is collateralized solely by servicing assets, and by first-pay classes of asset-backed securities collateralized by first-lien residential mortgages on properties located in any state:
(7) Seasoned loans.
(i) Any securitization transaction that is collateralized solely by servicing assets, and by seasoned loans that meet the following requirements:
(ii) For purposes of this paragraph, a seasoned loan means:
(A) With respect to asset-backed securities collateralized by residential mortgages, a loan that has been outstanding and performing for the longer of:
(1) A period of five years; or
(2) Until the outstanding principal balance of the loan has been reduced to 25 percent of the original principal balance.
(3) Notwithstanding paragraphs (b)(7)(ii)(A)(1) and (2) of this section, any residential mortgage loan that has been outstanding and performing for a period of at least seven years shall be deemed a seasoned loan.
(B) With respect to all other classes of asset-backed securities, a loan that has been outstanding and performing for the longer of:
(1) A period of at least two years; or
(2) Until the outstanding principal balance of the loan has been reduced to 33 percent of the original principal balance.
(8) Certain public utility securitizations.
(ii) For purposes of this paragraph:
(B) Specified cost recovery legislation means legislation enacted by a State that:
(1) Authorizes the investor owned utility company to apply for, and authorizes the public utility commission or other appropriate State agency to issue, a financing order determining the amount of specified costs the utility will be allowed to recover;
(2) Provides that pursuant to a financing order, the utility acquires an intangible property right to charge, collect, and receive amounts necessary to provide for the full recovery of the specified costs determined to be recoverable, and assures that the charges are non-bypassable and will be paid by customers within the utility's historic service territory who receive utility goods or services through the utility's transmission and distribution system, even if those customers elect to purchase these goods or services from a third party; and
(3) Guarantees that neither the State nor any of its agencies has the authority to rescind or amend the financing order, to revise the amount of specified costs, or in any way to reduce or impair the value of the intangible property right, except as may be contemplated by periodic adjustments authorized by the specified cost recovery legislation.
(c) Exemption for securitizations of assets issued, insured or guaranteed by the United States. This part shall not apply to any securitization transaction if the asset-backed securities issued in the transaction are:
(e) Reduced requirement for certain student loan securitizations. The 5 percent risk retention requirement set forth in § 267.4 shall be modified as follows:
(f) Community-focused lending securitizations.
(2) For any securitization transaction that includes both community-focused residential mortgages and residential mortgages that are not exempt from risk retention under this part, the percent of risk retention required under § 267.4(a) is reduced by the ratio of the unpaid principal balance of the community-focused residential mortgages to the total unpaid principal balance of residential mortgages that are included in the pool of assets collateralizing the asset-backed securities issued pursuant to the securitization transaction (the community-focused residential mortgage asset ratio); provided that:
(g) Exemptions for securitizations of certain three-to-four unit mortgage loans. A sponsor shall be exempt from the risk retention requirements in subpart B of this part with respect to any securitization transaction if:
(1)