§509.102. Applicable provisions of law.

General. The Internal Revenue Code of 1954 provides in part as follows:

Internal Revenue Code of 1939. Any reference in §§ 509.101 to 509.122 to any provision of the Internal Revenue Code of 1954 shall, where applicable, be deemed also to refer to the corresponding provision of the Internal Revenue Code of 1939.

Effective date of regulations. Pursuant to sections 894 and 7805 of the Internal Revenue Code of 1954, Article XIX of the convention, and other provisions of the internal revenue laws, §§ 509.101 to 509.122 are hereby prescribed effective for taxable years beginning on or after January 1, 1951. All regulations inconsistent herewith are modified accordingly.