Exhibit 10.15(a)

“Beneficiary” means the person(s) (or trust) designated by a Participant, or determined by the Plan Administrator, under Section 4.7.

“CIGNA” means CIGNA Corporation, a Delaware corporation, or its successor.

“Committee” means the Corporate Benefit Plan Committee of CIGNA, or a successor committee or person designated by CIGNA’s Chief Executive Officer.

“Company” means CIGNA Corporation and those of its subsidiaries and affiliates which participate in the CIGNA Pension Plan.

“Deferred Compensation Plan” means the Deferred Compensation Plan of CIGNA Corporation, any successor plan, and any similar plans or arrangements maintained by the Company.

“Participant” means any Eligible Employee who is eligible to participate in the Plan but only to the extent that the employee has (or might in the event of Retirement at his earliest Early Retirement Date under the Pension Plan have) an Accrued Benefit as defined in Section 3.1.

“Plan” means the CIGNA Supplemental Pension Plan, as amended and restated effective August 1, 1998.

“Plan A Participant” means, beginning January 1, 1998, a Participant whose Pension Plan benefit does not accrue under the formula described in the Part B version of the Pension Plan.

“Plan B Participant” means, beginning January 1, 1998, a Participant whose Pension Plan benefit does accrue under the formula described in the Part B version of the Pension Plan.

“Pension Plan” means the CIGNA Pension Plan, a defined benefit pension plan, or its successor plan(s).

“Rabbi Trust” means a grantor trust, the assets of which will not be subject to the claims of creditors of the Company, except in the case of the bankruptcy or insolvency of the Company.

“Supplemental Pension Benefit” means the benefit payable to a Plan Participant as described in Section 3.1.

“Supplemental Pre-Retirement Surviving Spouse Benefit” means the benefit payable to Participant’s surviving Spouse as described in Section 4.3.

“Survivor” means a Participant’s Spouse or other person designated in writing by the Participant under procedures established by the Plan Administrator, to the extent the Spouse or other person remains living after the Participant’s death.

“Financial Emergency” means a Participant’s severe and unforeseeable financial hardship, resulting from a sudden and unexpected illness or accident, casualty loss, sudden financial reversal, or similar unforeseeable occurrence arising as a result of events beyond the Participant’s control. Cash needs arising from foreseeable events (such as the purchase of a home or educational expenses for children) shall not be considered to be a Financial Emergency.

A Participant shall accrue a Supplemental Pension Benefit equal to the excess of (1) over (2) where:

is the Accrued Benefit the Participant would have under the Pension Plan if the Pension Plan did not have:

a limit on retirement benefits under Code section 415;

a limit on compensation under Code section 401(a)(17); and

an exclusion from Eligible Earnings of compensation deferred under the Deferred Compensation Plan; and

is the Participant’s actual Accrued Benefit under the Pension Plan.

For a Plan A Participant, the Supplemental Pension Benefit shall include the actuarial lump sum present value determined using the applicable assumptions and methods under the Pension Plan (as modified by Section 3.3) as of the date of payment, of the excess of (1) over (2) where:

is the post-retirement surviving Spouse benefit which would be payable to the Spouse under the Pension Plan if the Pension Plan did not have the provisions listed in Section 3.1 (a)(1)(A), (B) and (C); and

is the post-retirement surviving Spouse benefit which is actually payable under the Pension Plan.

Except as provided in Section 4.2, the Supplemental Pension Benefit under Section 3.1 shall be paid to the Participant in the form of a single lump sum in the January following Participant’s termination of employment from the Company or, if later, the January following the year in which the Participant reaches age 55.

The amount of the single lump sum payment shall be the actuarially equivalent present value, determined as of the date of payment, of (1) the Supplemental Pension Benefit described in Section 3.1(a) and (2) for a Plan A Participant, the amount described in Section 3.1(b), with both (1) and (2) stated in the form of a single life annuity.

A Participant may request that the Supplemental Pension Benefit be paid, beginning on the dates described in Section 4.1(a), in one of the following Optional Payment Methods:

Single life annuity for the Participant’s life;

Life annuity for the Participant’s life with a 50% or 100% contingent Survivor annuity;

Annual installments for five, ten or fifteen years (with any remaining installments after Participant’s death payable to Participant’s Beneficiary).

The contingent Survivor annuity under paragraph 4.2(a)(2) shall be payable to the Participant’s Survivor only if the Participant predeceases the Survivor and shall be paid in monthly installments beginning in the month following the Participant’s death and ending in the month the Participant’s Survivor dies.

Regardless whether the Participant has requested an Optional Payment Method under Section 4.2(a), a Participant may request that the date of payment under Section 4.1 or the date payments begin under Section 4.2(a) be postponed to January of any later year, but no later than the year after the Participant reaches age 70.

A Participant’s request for payment of the Supplemental Pension Benefit in an Optional Payment Method, or for a postponed payment date, shall be made in writing to the Plan Administrator. The request must be received by the Plan Administrator no later than the earlier of (1) 13 months before the earliest scheduled date of payment or (2) Participant’s termination of employment date.

Notwithstanding Section 4.2(c), the Plan Administrator may provide, as soon as is reasonably practicable after August 1, 1998, to Participants whose Supplemental Pension Benefit payments have not yet started an opportunity to request an Optional Payment Method or a postponed payment date, or both, or to revoke or modify a prior election. The nature and duration of that opportunity shall be determined by the Plan Administrator in its sole and absolute discretion.

A Participant may, before his termination of employment date, make a written request to the Plan Administrator for an Optional Payment Method, a change to another Optional Payment Method or a change to the standard single lump sum form of benefit under Section 4.1.

The Plan Administrator shall consider any request made under Section 4.2(a), (b), (d) or (e). In determining whether the request should be granted, the Plan Administrator shall consider:

the Participant’s financial needs, including any other sources of retirement income;

the needs and financial security of the Participant’s dependents;

the projected financial needs of the Company; and

for requests under Section 4.2(e), any changed or unusual circumstances (such as the Participant’s involuntary termination of employment).

If a Plan A Participant who dies before the Supplemental Pension Benefit payment has been made under Section 4.1 (or before the date as of which payments have commenced under Section 4.2) has a surviving Spouse who is eligible for a pre-retirement surviving Spouse benefit under the Pension Plan, then the Spouse shall be eligible for a Supplemental Pre-Retirement Surviving Spouse Benefit under this Plan (if the amount calculated under Section 4.3(c) is greater than zero).

The Supplemental Pre-Retirement Surviving Spouse Benefit shall be paid to the eligible Spouse as soon as practicable after the Participant’s death. The form of payment shall be:

A single lump sum if the Participant had not elected an Optional Payment Method under Section 4.2(a);

Annual installments for the period selected by the Participant, if the Participant had elected an Optional Payment Method under Section 4.2(a)(3); or

Annual installments for 15 years (with any remaining installments payable to the Spouse’s Beneficiary if the Spouse dies before all installments are paid), if the Participant elected an Optional Payment Method under Section 4.2(a)(1) or (2).

The amount of the Supplemental Pre-Retirement Surviving Spouse Benefit shall be equal to the actuarial present value, determined using the applicable assumptions and methods under the Pension Plan (as modified by Section 3.3) as of the date of payment, of the excess of (1) over (2) where:

is the pre-retirement surviving Spouse benefit which would be payable to the Spouse under the Pension Plan if the Pension Plan did not have the provisions listed in Section 3.1 (a)(1) (A), (B) and (C) of this Plan; and

is the pre-retirement surviving Spouse benefit which is actually payable under the Pension Plan.

If a Plan B Participant dies before the Supplemental Pension Benefit payment has been made under Section 4.1 (or before the date as of which payments have commenced under Section 4.2), the Participant’s Supplemental Pension Benefit shall be paid to the Participant’s Beneficiary as soon as practicable after the Participant’s death. The form of payment shall be:

A single lump sum if the Participant had not elected an Optional Payment Method under Section 4.2(a);

Annual installments for the period selected by the Participant, if the Participant had elected an Optional Payment Method under Section 4.2(a)(3); or

Annual installments for 15 years (with any remaining installments payable to the Beneficiary’s Beneficiary if the Beneficiary dies before all installments are paid), if the Participant elected an Optional Payment Method under Section 4.2(a)(1) or (2).

At the sole discretion of the Plan Administrator, any benefits payable to the Participant under Section 4.1, to Participant’s Spouse under Section 4.3 or to Participant’s Beneficiary under Section 4.4 which at any time either (1) have a lump sum present value of less than $25,000 or (2) result in monthly installments of less than $250 each may be commuted to a single lump sum payment and paid to the Participant, Spouse, or Beneficiary as appropriate.

A Plan A Participant who is paid a Supplemental Pension Benefit in the form of a single lump sum under Sections 4.1, 4.5 or 4.6 and who is later rehired by any Company shall not, upon subsequent Retirement or other termination of employment, be entitled to any additional Supplemental Pension Benefit under this Plan based upon any Credited Service used in the calculation of the initial Supplemental Pension Benefit payment. Furthermore, any Credited Service that is or would be disregarded under the preceding sentence in computing a Plan A Participant’s Supplemental Pension Benefit shall also be disregarded in computing any benefits payable to Participant’s Spouse under Sections 4.3 after Participant’s reemployment.

A Plan B Participant who is paid a Supplemental Pension Benefit in the form of a single lump sum under Sections 4.1, 4.5 or 4.6 and who is later rehired by any Company shall not, upon subsequent Retirement or other termination of employment, be entitled to any additional Supplemental Pension Benefit under this Plan based upon any Benefit Credits or Interest Credits used in the calculation of the initial Supplemental Pension Benefit payment. Furthermore, any Credits that are or would be disregarded under the preceding sentence in computing a Plan B Participant’s Supplemental Pension Benefit shall also be disregarded in computing any benefits payable to Participant’s Beneficiary under Section 4.4 after Participant’s reemployment.

Section 4.6 shall apply only to a Participant who has elected to postpone the date of payment (or the date payments begin) under Section 4.2(b) and only after the later of the date the Participant reaches age 55 or terminates employment with the Company.

Before the date of payment of a Participant’s Supplemental Pension Benefit (or the date payments are to begin under an Optional Payment Method), a Participant may request an accelerated payment of all or part of the Supplemental Pension Benefit to meet a Financial Emergency. The request must be in writing to the Plan Administrator and must be supported by evidence of a Financial Emergency. The Plan Administrator shall have sole and absolute discretion to grant or deny the Participant’s request. If the request is granted, the accelerated payment shall not be more than the lesser of $50,000 or the amount deemed necessary by the Plan Administrator to meet Participant’s Financial Emergency.

Any payments under this Section 4.6 shall reduce any remaining benefits to, or related to, the Participant under this Plan.

This Plan shall be maintained as an unfunded plan which is not intended to meet the qualification requirements of Code section 401. Plan benefits shall be payable solely from the general assets of the Company which employs the Participant when benefits are accrued, or a Company which has assumed liability for paying the benefits. No separate or special fund shall be established and no segregation of assets shall be made to assure the payment of Plan benefits, though the Company may choose to fund Plan benefits through a Rabbi Trust. A Participant shall have no right, title, or interest in or to any investments which the Company may make to aid in meeting its obligations under this Plan.

Nothing contained in the Plan, and no action taken under it, shall create or be construed to create a trust of any kind, or a fiduciary relationship, between the Company or the Plan Administrator and a Participant or any other person. To the extent that any person acquires a right to receive Plan benefits, that right shall be no greater than the right of an unsecured creditor of the Company.

The Plan shall be administered by a Plan Administrator appointed by the Committee, or its designee. The Plan Administrator shall have full power and authority to interpret the Plan; to prescribe, amend and rescind any rules, forms and procedures as it deems necessary or appropriate for the proper administration of the Plan; to make any other determinations including factual determinations and determinations as to eligibility for, and the amount of, benefits payable under the Plan; and to take any other actions it deems necessary or advisable in carrying out its duties under the Plan.

All decisions, interpretations and determinations by the Plan Administrator shall be final and binding on the Company, Participants and any other persons having or claiming an interest under this Plan.

the Plan shall not be terminated;

the accrual of Supplemental Pension Benefits shall not be stopped, suspended or otherwise adversely affected; and

the rate at which Supplemental Pension Benefits accrue shall not be reduced.