(a) General. When used in this part, the terms defined in this section shall have the meaning so assigned to them. A term not defined in this section shall have the meaning, if compatible with the context, imputed thereto under the Internal Revenue Code of 1954.

(b) Attorney General. The term “Attorney General” includes the Alien Property Custodian whose functions were transferred to the Attorney General pursuant to Executive Order 9788 (3 CFR 1943-1948 Comp., p. 575), and any other officers and agencies to which such functions are transferred or assigned pursuant to such Executive Order, or otherwise.

(c) Commissioner. The term “Commissioner” means the Commissioner of Internal Revenue.

(d) Person. The term “person” includes an individual, a trust, estate, partnership, company, or corporation, and any entity having or claiming an interest in vested property or liable or charged with liability for internal revenue tax in connection with such property.

(e) Former owner. The term “former owner” means the owner immediately prior to vesting and any successor in interest by inheritance, devise, bequest, or operation of law, of such owner.

(f) Trading With the Enemy Act. The term “Trading With the Enemy Act” includes all amendments of such Act, and all orders, rules, and regulations issued or prescribed under such Act or any such amendment.

(g) Property. The term “property” includes money, the proceeds of property, income, dividends, interest, annuities, and other earnings, but does not include any property or interest or any of the foregoing which vested in the Attorney General or was otherwise acquired by the United States prior to December 18, 1941.

(h) Property vested by or in the Attorney General. The terms “property vested by the Attorney General” and “property vested in the Attorney General” include property conveyed, transferred, assigned, delivered, or paid to or held or controlled by or vested in the Attorney General, under the Trading With the Enemy Act.

(i) Engaged in trade or business in the United States. The term “engaged in trade or business in the United States” includes the managing and renting of real estate in the United States by an agent of the Attorney General or of the former owner duly authorized to execute rental agreements and to pay all taxes and charges incident to the repair and maintenance of such property, but does not include the mere renting or leasing of property under an agreement requiring the lessee or occupant to pay taxes and to make repairs or improvements.

(j) Tax. The term “tax” has the meaning stated in section 36(d) of the Trading With the Enemy Act as added by the Act of August 8, 1946.