approaches based on prospective adjustments from purchase prices or other prior events, or formulaic approaches based on retrospectively adding deferral charges based on eventual sale prices or other specified later events indicative of valuation, and (3) may address the use of valuation discounts. 2903. Special rules (a) Deceased individuals (1) In general In the case of any individual who dies during a calendar year and who is not married on the date of such individual's death— (A) section 2901(a) shall be applied by substituting the date of the individual's death for the last day of the calendar year , and (B) the amount of the tax imposed under such section shall be reduced by an amount which bears the same ratio to such amount (determined without regard to this subsection) as— (i) the number of days in the calendar year after the date of the individual's death, bears to (ii) 365. (2) Coordination with estate tax For purposes of section 2053, the tax imposed by this section for the year of the decedent's death shall be considered to have been imposed before such death. (b) Application to non-Residents In the case of any individual who is a non-resident and not a citizen of the United States, this subtitle shall apply only to the property of such individual which is situated in the United States (determined under rules similar to the rules under subchapter B of chapter 11). (c) Application to covered expatriates In the case of an individual who is a covered expatriate (as defined in section 877A), section 2901(a) shall be applied— (1) as if the calendar year ended on the day before the expatriation, and (2) as if the rate of tax under both subparagraphs (A) and (B) of section 2901(b)(1) were 40 percent. 2904. Information reporting (a) In general Not later than 12 months after the date of the enactment of this section, the Secretary shall by regulations require the reporting of any information concerning the net value of assets appropriate to enforce the tax imposed by this chapter. (b) Method of reporting The