Sec. 501 Modifications of required distribution rules for pension plans
“(H) Special rules for certain defined contribution plans
“(i) In general—In the case of distributions from a defined contribution plan, a trust forming part of such plan shall not constitute a qualified trust under this section unless the plan provides that, if—
“(I) an employee dies before the distribution of the employee's interest (whether or not such distribution has begun in accordance with subparagraph (A)), and
“(II) the aggregate account balances to the credit of the employee under all defined contribution plans, determined as of the date of the employee's death, exceeds $450,000,
“(ii) Allocation of limitation—If an employee has an account under more than 1 defined contribution plan, the $450,000 amount under clause (i)(II) shall be allocated among all such plans, as provided in regulations prescribed by the Secretary, for purposes of applying clause (i).
“(iii) Treatment of remaining amount—The portion of the employee's interest distributed under clause (i) shall not be taken into account for purposes of determining the rapidity or the method of distribution of any portion of the interest of the employee to which clause (i) does not apply.
“(iv) Multiple beneficiaries—In the case of an employee who has more than 1 beneficiary, the amount of the portion required to be distributed under clause (i) which shall be treated as payable to (or for the benefit of) such beneficiary is the amount which bears the same ratio to the total amount of such portion as—
“(I) the portion of the employee's entire interest (determined as of the date of the employee's death) which is payable to (or for the benefit of) such beneficiary, bears to
“(II) the amount of the employee's entire interest (so determined).
“(v) Exception for eligible designated beneficiaries—If—
“(I) any portion of the employee's interest is payable to (or for the benefit of) an eligible designated beneficiary,
“(II) such portion will be distributed (in accordance with regulations) over the life of such eligible designated beneficiary (or over a period not extending beyond the life expectancy of such beneficiary), and
“(III) such distributions begin not later than 1 year after the date of the employee's death or such later date as the Secretary may by regulations prescribe,
“(vi) Special rule for surviving spouse of employee—If the eligible designated beneficiary is the surviving spouse of the employee—
“(I) the date on which the distributions are required to begin under clause (v)(III) shall not be earlier than the date on which the employee would have attained age 701/2, and
“(II) if the surviving spouse dies before the distributions to such spouse begin, this subparagraph shall be applied as if the surviving spouse were the employee.
“(vii) Rules upon death of eligible designated beneficiary—If an eligible designated beneficiary dies before the portion of the employee's interest to which clause (i) applies which is payable to (or for the benefit of) such eligible designated beneficiary is entirely distributed, the exception under clause (v) shall not apply to any beneficiary of such eligible designated beneficiary and the remainder of such portion shall be distributed within 5 years after the death of such beneficiary.
“(viii) Coordination with individual retirement plans—For purposes of applying the provisions of this subparagraph and subsections (a)(6) and (b)(3) of section 408, individual retirement plans shall be treated as defined contribution plans in determining the aggregate account balances to the credit of the employee under all defined contribution plans and the amount required to be distributed to each beneficiary under such provisions.”
“(E) Definitions and rules relating to designated beneficiary—For purposes of this paragraph—
“(i) Designated beneficiary—The term designated beneficiary means any individual designated as a beneficiary by the employee.
“(ii) Eligible designated beneficiary—The term eligible designated beneficiary means, with respect to any employee, any designated beneficiary who is—
“(I) the surviving spouse of the employee,
“(II) subject to clause (iii), a child of the employee who has not reached majority (within the meaning of subparagraph (F)),
“(III) disabled (within the meaning of section 72(m)(7)),
“(IV) a chronically ill individual (within the meaning of section 7702B(c)(2), except that the requirements of subparagraph (A)(i) thereof shall only be treated as met if there is a certification that, as of such date, the period of inability described in such subparagraph with respect to the individual is an indefinite one which is reasonably expected to be lengthy in nature), or
“(V) an individual not described in any of the preceding subclauses who is not more than 10 years younger than the employee.
“(iii) Special rule for children—Subject to subparagraph (F), an individual described in clause (ii)(II) shall cease to be an eligible designated beneficiary as of the date the individual reaches majority and any remainder of the portion of the interest described in subparagraph (H)(v) shall be distributed within 5 years after such date.
“(iv) Time for determination of eligible designated beneficiary—The determination of whether a designated beneficiary is an eligible designated beneficiary shall be made as of the date of death of the employee.”