17 CFR § 270.8f-1 - Deregistration of certain registered investment companies.
A registered investment company that seeks a Commission order declaring that it is no longer an investment company may file an application with the Commission on Form N-8F (17 CFR 274.218) if the investment company:
(a) Has sold substantially all of its assets to another registered investment company or merged into or consolidated with another registered investment company;
(b) Has distributed substantially all of its assets to its shareholders and has completed, or is in the process of, winding up its affairs;
(d) Has become a business development company.