(a) Enterprise determinations subject to prior review and approval by FHFA. An Enterprise must submit to FHFA a proposed determination of approval or disapproval for each application. Within 45 days of an Enterprise submission, FHFA must approve or disapprove the Enterprise's proposed determination. FHFA may extend the time period for its review as needed. FHFA may impose such terms, conditions, or limitations on the approval or disapproval of the Enterprise's proposed determination as FHFA determines to be appropriate.

(b) Approval of a credit score model. If an Enterprise approves an application for a credit score model following FHFA review of its proposed determination, the Enterprise must implement the credit score model in its mortgage purchase systems that use a credit score for mortgage purchases. The Enterprise must provide written notice to the applicant and the public within 30 days after the FHFA decision on the proposed determination.

(c) Disapproval of a credit score model. If an Enterprise disapproves an application for a credit score model following FHFA review of its proposed determination, the Enterprise must provide written notice to the applicant within 30 days after the FHFA decision on the proposed determination. An application may be disapproved under this section at any time during the validation and approval process based on any of the criteria identified in the Credit Score Solicitation. The notice to the applicant must provide a description of the reasons for disapproval.