34 C.F.R. § 668.203
(a) General.
(b) Acquisition or merger of institutions. If your institution acquires, or was created by the merger of, one or more institutions that participated independently in the Title IV, HEA programs immediately before the acquisition or merger—
(c) Acquisition of branches or locations. If you acquire a branch or a location from another institution participating in the Title IV, HEA programs—
(d) Branches or locations becoming institutions. If you are a branch or location of an institution that is participating in the Title IV, HEA programs, and you become a separate, new institution for the purposes of participating in those programs—
(3) After the period described in paragraph (d)(2) of this section, your cohort default rates do not include borrowers from your former parent institution in the calculation under § 668.202.
(Authority:20 U.S.C. 1082, 1085, 1094, 1099c)