27 C.F.R. § 19.133
(a) If there is a death or insolvency of a partner in a company that holds an operating permit under this part, the surviving partner or partners may continue to operate under the operating permit if:
(b) If the surviving partner or partners acquire the business upon settlement of the partnership, the surviving partner or partners must file as an incoming proprietor and receive approval of the operating permit as required under § 19.132(a)(2).
(26 U.S.C. 5172)