On April 12, FHFA published a final rule amending its Enterprise Duty to Serve Underserved Markets regulation. The final rule, which was adopted without change from the proposed rule issued last year (covered by InfoBytes here), allows Fannie Mae and Freddie Mac (GSE) activities in all colonia census tracts to be eligible for Duty to Serve credit. Specifically, the amendment adds a “colonia census tract” definition to serve as a census tract-based proxy for a “colonia” (as generally applied to “unincorporated communities along the U.S.-Mexico border in California, Arizona, New Mexico, and Texas that are characterized by high poverty rates and substandard living conditions”). The final rule also amends the “high-needs rural region” definition by substituting “colonia census tract” for “colonia,” and revises the definition of “rural area” to include all colonia census tracts regardless of their location, in order to make GSE activities in all colonia census tracts eligible for duty to serve credit. The final rule takes effect July 1.