HUD is issuing this interpretive rule to clarify the scope of the provision of the recently enacted Economic Growth, Regulatory Relief, and Consumer Protection Act (Act) that prohibits the Government National Mortgage Association (Ginnie Mae) from guaranteeing the timely payment of principal and interest on a security that is "backed by a mortgage" that fails to meet certain "seasoning" requirements. With this new amendment, questions have arisen as to the effect of this provision on Ginnie Mae's ability to guarantee Multiclass Securities where the trust assets consist of direct or indirect interests in certificates, previously lawfully guaranteed by Ginnie Mae, but with underlying mortgage loans that may not be in compliance with the seasoning requirements. This rule provides HUD's interpretation that the statutory provision does not prohibit Ginnie Mae from making guarantees in this context. Although interpretive rules are exempt from public comment under the Administrative Procedure Act, HUD nevertheless invites public comment on the interpretation provided in this rule.