IRS approved an initial nuclear decommissioning fund contribution schedule

Plain-English summary

A utility with a qualifying ownership interest in a nuclear power plant requested an initial schedule of deductible contributions to its nuclear decommissioning fund under Section 468A. The proposed schedule used the taxpayer's share of estimated decommissioning costs, projected future costs, expected investment returns, and assumptions from an independent decommissioning study used by the public utility commission for ratemaking. The IRS found that the taxpayer was eligible, had properly calculated its share of the costs, and had supported the proposed schedule with reasonable assumptions. It approved the redacted annual ruling amount for each year in the stated period. The taxpayer must seek a revised schedule if specified events occur and otherwise must request a revision by the tenth taxable year after receiving this schedule.

Ruling snapshot

• Question: Does the proposed initial schedule of contributions to a qualified nuclear decommissioning fund satisfy IRC § 468A and its regulations?
• Outcome: approved
• Key authorities: IRC § 468A; Treas. Reg. §§ 1.468A-1, 1.468A-2, 1.468A-3, 1.468A-7

Full text (IRS public release)

Internal Revenue Service                                         Department of the Treasury
                                                                 Washington, DC 20224

Number: 202431001                                                Third Party Communication: None
Release Date: 8/2/2024                                           Date of Communication: Not Applicable
Index Number: 468A.04-01
                                                                 Person To Contact:
---------------------------------                                ------------------, ID No. -----------------
---------------------------------------                          Telephone Number:
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------------------------------------------                       Refer Reply To:
-------------------------                                        CC:PSI:B06
------------------------------                                   PLR-101863-23
                                                                 Date:
                                                                 May 01, 2024




Re:      Initial Schedule of Ruling Amounts
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LEGEND:

Taxpayer                            =         ----------------------------------
                  ---------------------------------------------------
Parent                              =         --------------------------------
                                    ---------------------------------
Plant                               =        -------------------------------------------------------
Location                            =        -------------------- -----------
Date A                              =        -------------------------
Date B                              =        -----------------
P                                   =        -----------------
Method                              =        -------------------------------------------------------
Independent Study                   =        ------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------------------
Commission                          =        ------------------------------------------------
Order                               =         -----------------------------------------------------------------------
-----------------------------------------------------------------------------------------------------------------
-------------------------------------------------------
Amount                              =        ---------------
Year A                              =        -------
Year B                              =        -------
Year C                              =        -------
Year D                              =        -------

Year E                       =     -------
BA                           =     ------------------
FV                           =     ------------------
X                            =     ----------
XX                           =     ----------
Y                            =     ----------
YY                           =     ----------
Fund                         =     ------------------------------------------


Dear --------------------:

        This letter responds to your request, dated December 13, 2022, for an initial
schedule of ruling amounts under § 468A of the Internal Revenue Code and § 1.468A-3
of the Income Tax Regulations.

      Taxpayer represents the facts and information relating to its request for an initial
schedule of ruling amounts as follows:

       Taxpayer is a subsidiary of Parent. The Plant is situated at Location. Taxpayer
received an operating license from the Nuclear Regulatory Commission for Plant on
Date A. This license is expected to expire on Date B. Taxpayer has a qualifying
ownership interest of P percent in Plant. With respect to the decommissioning costs
related to the Plant which are included in the Taxpayer’s cost of service for ratemaking
purposes, the Taxpayer is subject to regulation by Commission.

       Commission, in Order A, established the amount of decommissioning costs to be
included in Taxpayer’s cost of service for ratemaking purposes based on Independent
Study. The proposed method of decommissioning the Plant is Method.

       The estimated cost of $BA (Year A dollars) was used as a base cost for
decommissioning P percent of the Plant. The estimated cost of decommissioning P
percent of the Plant in future dollars is $FV. It is estimated that substantial
decommissioning costs will first be incurred in Year B and that decommissioning will be
substantially complete at the end of Year C. The methodology used to convert the Year
A dollars to future dollars was by escalating the estimated costs, depending on the
category of costs being escalated, at inflation rates of X and XX percent, to the year of
estimated expenditure. The assumed after-tax rate of return to be earned by the
amounts collected for decommissioning, again depending on the category of costs, is Y
and YY percent.

       Section 468A(a), as amended by the Energy Tax Incentives Act of 2005 (the
Act), Pub. L. 109-58, 119 Stat. 594, allows an electing taxpayer to deduct payments
made to a nuclear decommissioning reserve fund.

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PLR-101863-23

       Section 468A(b) limits the amount that may be paid into the nuclear
decommissioning fund in any year to the ruling amount applicable to that year. Prior to
the changes made by the Act, the deduction was limited to the lesser of the amount
included in the utility’s cost of service for ratemaking purposes or the ruling amount.
Generally, as a result, only regulated utilities could take advantage of § 468A. The Act
amendment of § 468A eliminated the cost-of-service limitation. Accordingly,
decommissioning costs of an unregulated nuclear power plant may now be funded by
deductible contributions to a qualified nuclear decommissioning fund.

       Section 468A(d)(1) provides that no deduction shall be allowed for any payment
to the nuclear decommissioning fund unless the taxpayer requests and receives from
the Secretary a schedule of ruling amounts. The "ruling amount" for any tax year is
defined under § 468A(d)(2) as the amount which the Secretary determines to be
necessary to fund the total nuclear decommissioning cost of that nuclear power plant
over the estimated useful life of the plant. This term is further defined to include the
amount necessary to prevent excessive funding of nuclear decommissioning costs or
funding of these costs at a rate more rapid than level funding, taking into account such
discount rates as the Secretary deems appropriate.

       Section 468A(h) provides that a taxpayer shall be deemed to have made a
payment to the nuclear decommissioning fund on the last day of a taxable year if the
payment is made on account of such taxable year and is made within 2½ months after
the close of the tax year. This section applies to payments made pursuant to either a
schedule of ruling amounts or a schedule of deduction amounts.

       Section 1.468A-1(a) provides that an eligible taxpayer may elect to deduct
nuclear decommissioning costs under § 468A of the Code. An "eligible taxpayer," as
defined under § 1.468A-1(b)(1) of the regulations, is a taxpayer that has a "qualifying
interest" in any portion of a nuclear power plant. A qualifying interest is, among other
things, a direct ownership interest.

       Section 1.468A-2(b)(1) provides that the maximum amount of cash payments
made (or deemed made) to a nuclear decommissioning fund during any tax year shall
not exceed the ruling amount applicable to the nuclear decommissioning fund for such
taxable year. The limitation on the amount of cash payments for purposes of § 1.468A-
2(b)(1) does not apply to any “special transfer” permitted under § 1.468A-8.

        Section 1.468A-3(a)(1) provides that, in general, a schedule of ruling amounts for
a nuclear decommissioning fund is a ruling specifying annual payments that, over the
tax years remaining in the "funding period" as of the date the schedule first applies, will
result in a projected balance of the nuclear decommissioning fund as of the last day of
the funding period equal to (and in no event more than) the "amount of
decommissioning costs allocable to the fund."

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PLR-101863-23

        Section 1.468A-3(a)(2) provides that, to the extent consistent with the principles
and provisions of this section, each schedule of ruling amounts shall be based on
reasonable assumptions concerning the after-tax rate of return to be earned by the
amounts collected for decommissioning, the total estimated cost of decommissioning
the nuclear plant, and the frequency of contributions to a nuclear decommissioning fund
for a taxable year. Under § 1.468A-3(a)(3), the Internal Revenue Service shall provide
a schedule of ruling amounts identical to the schedule proposed by the taxpayer, but no
such schedule shall be provided by the Service unless the taxpayer's proposed
schedule is consistent with the principles and provisions of that section.

        Section 1.468A-3(a)(4) provides that the taxpayer bears the burden of
demonstrating that the proposed schedule of ruling amounts is consistent with the
principles of the regulations and that it is based on reasonable assumptions. That
section also provides additional guidance regarding how the Service will determine
whether a proposed schedule of ruling amounts is based on reasonable assumptions.
For example, if a public utility commission established or approved the currently
applicable rates for the furnishing or sale by the taxpayer of electricity from the plant,
the taxpayer can generally satisfy this burden of proof by demonstrating that the
schedule of ruling amounts is calculated using the assumptions used by the public utility
commission in its most recent order. In addition, a taxpayer that owns an interest in a
deregulated nuclear plant may submit assumptions used by a public utility commission
that formerly had regulatory jurisdiction over the plant as support for the assumptions
used in calculating the taxpayer’s proposed schedule of ruling amounts, with the
understanding that the assumptions used by the public utility commission may be given
less weight if they are out of date or were developed in a proceeding for a different
taxpayer. The use of other industry standards, such as the assumptions underlying the
taxpayer's most recent financial assurance filing with the NRC, are described by the
regulations as an alternative means of demonstrating that the taxpayer has calculated
its proposed schedule of ruling amounts on a reasonable basis. Section 1.468A-3(a)(4)
further provides that consistency with financial accounting statements is not sufficient, in
the absence of other supporting evidence, to meet the taxpayer’s burden of proof.

       Section 1.468A-3(b)(1) provides that, in general, the ruling amount for any tax
year in the funding period shall not be less than the ruling amount for any earlier tax
year. Under § 1.468A-3(c)(1), the funding period begins on the first day of the first tax
year for which a deductible payment is made to the nuclear decommissioning fund and
ends on the last day of the taxable year that includes the last day of the estimated
useful life of the nuclear power plant to which the fund relates.

       Section 1.468A-3(c)(2) provides rules for determining the estimated useful life of
a nuclear plant for purposes of § 468A. In general, under § 1.468A-3(c)(2)(i)(A), if the
plant was included in rate base for ratemaking purposes for a period prior to January 1,
2006, the date used in the first such ratemaking proceeding as the estimated date on
which the nuclear plant will no longer be included in the taxpayer’s rate base is the end

                                             5
PLR-101863-23

of the estimated useful life of the nuclear plant. Section 1.468A-3(c)(2)(i)(B) provides
that, if the nuclear plant is not described in § 1.468A-3(c)(2)(i)(A), the last day of the
estimated useful life of the nuclear plant is determined as of the date the plant is placed
in service. Under § 1.468A-3(c)(2)(i)(C), any reasonable method may be used in
determining the estimated useful life of a nuclear power plant that is not described in §
1.468A-3(c)(2)(i)(A).

        Section 1.468A-3(d)(1) provides that the amount of decommissioning costs
allocable to a nuclear decommissioning fund is the taxpayer's share of the total
estimated cost of decommissioning the nuclear power plant. Section 1.468A-3(d)(3)
provides that a taxpayer's share of the total estimated cost of decommissioning a
nuclear power plant equals the total estimated cost of decommissioning such plant
multiplied by the taxpayer's qualifying interest in the plant.

        Section 1.468A-3(e) provides the rules regarding the manner of requesting a
schedule of ruling amounts. Section 1.468A-3(e)(1)(v) provides that the Service will not
provide or revise a ruling amount applicable to a taxable year in response to a request
for a schedule of ruling amounts that is filed after the deemed payment date (as defined
in § 1.468A-2(c)(1)) for such taxable year.

      Section 1.468A-3(e)(2) enumerates the information required to be contained in a
request for a schedule of ruling amounts filed by a taxpayer in order to receive a ruling
amount for any taxable year.

       Section 1.468A-3(e)(3) provides that the Service may prescribe administrative
procedures that supplement the provisions of §§ 1.468A-3(e)(1) and (2). In addition,
that section provides that the Service may, in its discretion, waive the requirements of
§§ 1.468A-3(e)(1) and (2) under appropriate circumstances.



       We have examined the representations and information submitted by the
Taxpayer in relation to the requirements set forth in § 468A and the regulations
thereunder. Based solely upon these representations of the facts, we reach the
following conclusions:

       1. Pursuant to § 1.468A-3(a)(4), Taxpayer has met its burden of demonstrating
          that the proposed schedule of ruling amounts is consistent with the principles
          of the Code and regulations and is based on reasonable assumptions.

       2. Taxpayer has a qualifying ownership interest in the Plant and is, therefore, an
          eligible taxpayer under § 1.468A-1(b)(1) of the regulations.

                                            6
PLR-101863-23

       3. Taxpayer, as an eligible taxpayer under § 1.468A-1(b)(1), has calculated its
          share of the total decommissioning costs under § 1.468A-3(d)(3) of the
          regulations.

       4. The proposed schedule of ruling amounts was derived by following the
          assumptions contained in an independent decommissioning study that
          Taxpayer has represented is a standard type study used in the industry. In
          addition, Independent Study was used by Commission to calculate the
          amount of decommissioning costs to be included in Taxpayer’s cost of service
          for ratemaking purposes. Thus, Taxpayer has demonstrated, pursuant to §
          1.468A-3(a)(4), that the proposed schedule of ruling amounts is based on
          reasonable assumptions and is consistent with the principles of § 468A and
          the regulations thereunder.

       5. The maximum amount of cash payments made (or deemed made) to the
          Fund during any tax year is restricted to the ruling amount applicable to the
          Fund, as set forth under § 1.468A-2(b)(1) of the regulations.

      Based solely on the determinations above, we conclude that the Taxpayer’s
proposed schedule of ruling amounts satisfies the requirements of § 468A of the Code.
We have approved the following schedule of ruling amounts.

                     APPROVED SCHEDULE OF RULING AMOUNTS

                  Years                                   Ruling Amount

      Each Year - Year D – Year E                             $Amount

       If any of the events described in § 1.468A-3(f)(1) occur in future years, the
Taxpayer must request a review and revision of the schedule of ruling amounts.
Generally, the Taxpayer is required to file such a request on or before the deemed
payment deadline date for the first taxable year in which the rates reflecting such action
became effective. When no such event occurs, the Taxpayer must file a request for a
revised schedule of ruling amounts on or before the deemed payment deadline of the
tenth taxable year following the close of the tax year in which this schedule of ruling
amounts is received.

       Except as specifically determined above, no opinion is expressed or implied
concerning the Federal income tax consequences of the transaction described above.
Specifically, no determination is made whether the independent decommissioning study
conforms to industry standards and practices.

                                                        7
PLR-101863-23

       This ruling is directed only to the Taxpayer who requested it. Section 6110(k)(3)
of the Code provides it may not be used or cited as precedent. In accordance with the
power of attorney on file with this office, a copy of this letter is being sent to your
authorized representatives. Pursuant to § 1.468A-7(a), a copy of this letter must be
attached (with the required Election Statement) to the Taxpayer's federal income tax
return for each tax year in which the Taxpayer claims a deduction for payments made to
the Fund.




                                                                 Sincerely yours,
                                                                 Associate Chief Counsel
                                                                 (Passthroughs and Special Industries)


                                                     By:         ____________/S/_________________
                                                                 PATRICK S. KIRWAN
                                                                 Branch Chief, Branch 6
                                                                 Office of the Associate Chief Counsel
                                                                 (Passthroughs and Special Industries)

Enclosure
      Copy for § 6110 purposes

cc:       -----------------------
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