PERIOD OF LIMITATION FOR FILING CLAIM FOR CREDIT FOR STATE DEATH TAXES.

SEC. 65. PERIOD OF LIMITATION FOR FILING CLAIM FOR CREDIT FOR STATE DEATH TAXES. (a) Period Under 1954 Code.—Section 2011 (c) (relating to period of limitations on credit for State death taxes) is amended by inserting after paragraph (2) the following new paragraph: “(3) If a claim for refund or credit of an overpayment of tax imposed by this chapter has been filed within the time prescribed in section 6511, then within such 4-year period or before the expiration of 60 days from the date of mailing by certified mail or registered mail by the Secretary or his delegate to the taxpayer of a notice of the disallowance of any part of such claim, or before the expiration of 60 days after a decision by any court of competent jurisdiction becomes final with respect to a timely suit instituted upon such claim, whichever is later.” (b) Period Under 1939 Code.— Section 813 (b) of the Internal Revenue Code of 1939 (relating to period of limitations on credit for State death taxes) is amended by inserting after paragraph (2) the following new paragraph: “(3) If a claim for refund or credit of an overpayment of tax imposed by this chapter has been filed within the time prescribed in section 910, then within such 4-year period or before the expiration of 60 days from the date of mailing by certified mail or registered mail by the Secretary or his delegate to the taxpayer of a notice of the disallowance of any part of such claim, or before the expiration of 60 days after a decision by any court of competent jurisdiction becomes final with respect to a timely suit instituted upon such claim, whichever is later.” (c) Effective Dates.—The amendment made by subsection (a) shall apply with respect to estates of decedents dying after August 16, 1954. The amendment made by subsection (b) shall apply with respect to estates of decedents dying after February 10, 1939, and on or before August 16, 1954.