Sections 25.2701-1 through 25.2701-4 and §§ 25.2701-6 and 25.2701-7 are effective as of January 28, 1992. For transfers made prior to January 28, 1992, taxpayers may rely on any reasonable interpretation of the statutory provisions. For these purposes, the provisions of the proposed regulations and the final regulations are considered a reasonable interpretation of the statutory provisions.