(a) In general. The term “regulated investment company” is defined to mean any domestic corporation (other than a personal holding company as defined in section 542) which meets (1) the requirements of section 851(a) and paragraph (b) of this section, and (2) the limitations of section 851(b) and §1.851-2. As to the definition of the term “corporation”, see section 7701(a)(3).

(b) Requirement. To qualify as a regulated investment company, a corporation must be:

(1) Registered at all times during the taxable year, under the Investment Company Act of 1940, as amended (15 U.S.C. 80a-1 to 80b-2), either as a management company or a unit investment trust, or

(2) A common trust fund or similar fund excluded by section 3(c)(3) of the Investment Company Act of 1940 (15 U.S.C. 80a-3(c)) from the definition of “investment company” and not included in the definition of “common trust fund” by section 584(a).