26 C.F.R. § 1.401(a)-4

Current through September 30, 2024
Section 1.401(a)-4 - Optional forms of benefit (before 1994)

Q-1: How does section 401(a)(4) apply to optional forms of benefits?

A-1:

(a)In general -
(1)Scope. The nondiscrimination requirements of section 401(a)(4) apply to the amount of contributions or benefits, optional forms of benefit, and other benefits, rights and features (e.g., actuarial assumptions, methods of benefit calculation, loans, social security supplements, and disability benefits) under a plan. This section addresses the application of section 401(a)(4) only to optional forms of benefit under a plan. Generally, the determination of whether an optional form is nondiscriminatory under section 401(a)(4) is made by reference to the availability of such optional form, and not by reference to the utilization or actual receipt of such optional form. See Q&A-2 of this section. Even though an optional form of benefit under a plan may be nondiscriminatory under section 401(a)(4) and this § 1.401(a)-4 because the availability of such optional form does not impermissibly favor employees in the highly compensated group, such plan may fail to satisfy section 401(a)(4) with respect to the amount of contributions or benefits or with respect to other benefits, rights and features if, for example, the method of calculation or the amount or value of benefits payable under such optional form impermissibly favors the highly compensated group. See § 1.411(d)-4 , Q&A-1 for the definition of "optional form of benefit."
(2)Nondiscrimination requirements. Each optional form of benefit provided under a plan is subject to the nondiscrimination requirement of section 401(a)(4) and thus the availability of each optional form of benefit must not discriminate in favor of the employees described in section 401(a)(4) in whose favor discrimination is prohibited (the "highly compensated group"). See paragraph (b) of this Q&A-1 for a description of the employees included in such group. This is true without regard to whether a particular optional form of benefit is the actuarial equivalent of any other optional form of benefit under the plan. Thus, for example, a plan may not condition, or otherwise limit, the availability of a single sum distribution of an employee's benefit in a manner that impermissibly favors the highly compensated group.
(b)Highly compensated group. For plan years commencing prior to the applicable effective date for the amendment made to section 401(a)(4) by section 1114 of the Tax Reform Act of 1986 (TRA '86), the highly compensated group consists of those employees who are officers, shareholders, or highly compensated. For plan years beginning on or after the applicable effective date of the amendments to section 401(a)(4) made by TRA '86, the highly compensated group consists of those employees who are highly compensated within the meaning of section 414(q). The amendment to section 401(a)(4) made by section 1114 of TRA '86 is generally effective for plan years commencing after December 31, 1988. See section 1114(a) of TRA '86.

Q-2: How is it determined whether an optional form of benefit satisfies the nondiscrimination requirements of section 401(a)(4)?

A-2:

(a)Nondiscrimination requirement -
(1)In general. An optional form of benefit under a plan is nondiscriminatory under section 401(a)(4) only if the requirements of paragraphs (a)(2) and (a)(3) of this Q&A-2 are satisfied with respect to such optional form. The determination of whether an optional form of benefit satisfies these requirements is made by reference to the availability of the optional form, and not by reference to the utilization or actual receipt of such optional form. Thus, an optional form of benefit that satisfies the requirements of paragraphs (a)(2) and (a)(3) of this Q&A-2 is nondiscriminatory under section 401(a)(2) even though the highly compensated group disproportionately utilizes such optional form. However, the composition of the group of employees who actually receive benefits in an optional form may be relevant in determining whether such optional form satisfies the requirement of paragraph (a)(3) of this Q&A-2 with respect to effective availability.
(2)Current availability -
(i)Plan years prior to TRA '86 effective date. Except as provided in paragraph (a)(2)(iii) of this Q&A-2, for plan years prior to the effective date of the amendments made to section 401(b) by section 1112(a) of TRA '86, the requirement of this paragraph (a)(2) is satisfied only if the group of employees to whom the optional form is currently available satisfies either the seventy percent test of section 410(b)(1)(A) or the nondiscriminatory classification test of section 410(b)(1)(B).
(ii)Plan years commencing on or after TRA '86 effective date. Except as provided in paragraph (a)(2)(iii) of this Q&A-2, for plan years commencing on or after the effective date on which the amendments made to section 410(b) by section 1112(a) of TRA '86 first apply to a plan, the requirement of this paragraph (a)(2) is satisfied only if the group of employees to whom the optional form is currently available satisfies either the percentage test set forth in section 410(b)(1)(A), the ratio test set forth in section 410(b)(1)(B), or the nondiscriminatory classification test set forth in section 410(b)(2)(A)(i). The employer need not satisfy the average benefit percentage test in section 410(b)(2)(A)(ii) in order for the optional form to be currently available to a nondiscriminatory group of employees.
(iii)Special rule for certain governmental or church plans. Plans described in section 410(c) will be treated as satisfying the current availability test of this paragraph (a)(2) if the group of employees with respect to whom the optional form is currently available satisfies the requirements of section 401(a)(3) as in effect on September 1, 1974.
(iv)Effective data for TRA '86 amendments to section 410(b). The amendments to section 410(b) made by section 1112(a) of TRA '86 are generally effective for plan years commencing after December 31, 1988. See section 1112(e)(1) of TRA '86.
(v)Elimination of optional forms -
(A)In general. Notwithstanding paragraphs (a)(2)(i) and (a)(2)(ii) of this Q&A-2, in the case of an optional form of benefit that has been eliminated under a plan with respect to specified employees for benefits accrued after the later of the eliminating amendment's adoption date or effective date, the determination of whether such optional form satisfies this paragraph (a)(2) with respect to such employees is to be made immediately prior to the elimination. Accordingly, if, as of the later of the adoption date or effective date of an amendment eliminating an optional form with respect to future benefit accruals, the current availability of such optional form immediately prior to such amendment satisfies this paragraph (a)(2), then the optional form will be treated as satisfying this paragraph (a)(2) for all subsequent years.
(B)Example. A profit-sharing plan that provides for a single sum distribution available to all employees on termination of employment is amended January 1, 1990, to eliminate such single sum optional form of benefit with respect to benefits accrued after January 1, 1991. As of January 1, 1991, the single sum optional form of benefit is available to a group of employees that satisfies the percentage test of section 410(b)(1)(A). As of January 1, 1995, all nonhighly compensated employees who were entitled to the single sum optional form of benefit have terminated from employment with the employer and taken a distribution of their benefits. The only remaining employees who have a right to take a portion of their benefits in the form of a single sum distribution on termination of employment are highly compensated employees. Because the availability of the single sum optional form of benefit satisfied the current availability test as of January 1, 1991, the availability of such optional form of benefit is deemed to continue to satisfy the current availability test of this paragraph (a)(2).
(3)Effective availability -
(i)In general. The requirement of this paragraph (a)(3) is satisfied only if, based on the facts and circumstances, the group of employees to whom the optional form is effectively available does not substantially favor the highly compensated group. This is the case even if the optional form is, or has been, currently available to a group of employees that satisfies the applicable requirements in paragraph (a)(2) (i) or (ii) of this Q&A-2.
(ii)Examples. The provisions of paragraph (a)(3)(i) of this Q&A-2 can be illustrated by the following examples:
Example 1. Employer X maintains a defined benefit plan that covers both of the 2 highly compensated employees of the employer and 8 of the twelve nonhighly compensated employees of the employer. Plan X provides for a normal retirement benefit payable as an annuity and based on a normal retirement age of 65, and an early retirement benefit payable upon termination in the form of an annuity to employees who terminate from service with the employer on or after age 55 with 30 or more years of service. Each of the 2 employees of employer X who are in the highly compensated group currently meet the age and service requirement, or will have 30 years of service by the time they reach age 55. All but 2 of the 8 nonhighly compensated employees of employer X who are covered by the plan were hired on or after age 35 and thus, cannot qualify for the early retirement benefit provision. Even though the group of employees to whom the early retirement benefit is currently available does not impermissibly favor the highly compensated group by reason of disregarding age and service, these facts and circumstances indicate that the effective availability of the early retirement benefit in plan X substantially favors the highly compensated group.
Example 2. Assume the same facts as in Example 1 except that the early retirement benefit is added by a plan amendment first adopted, announced and effective December 1, 1991, and is available only to employees who terminate from employment with the employer prior to December 15, 1991. Further assume that all employees were hired prior to attaining age 25, and that the group of employees who have, or will have attained age 55 with 30 years of service, by December 15, 1991, satisfies the ratio test of section 410(b)(1)(B). Finally, assume that the only employees who terminate from employment with the employer during the two week period in which the early retirement benefit is available are employees in the highly compensated group. These facts and circumstances indicate that the effective availability of the early retirement benefit substantially favors the highly compensated group. This is the case even though the limitation of the early retirement benefit to a specified period satisfies section 411(d)(6).
Example 3. Employer Y amends plan Y on June 30, 1990, to provide for a single sum distribution for employees who terminate from employment with the employer after June 30, 1990, and prior to January 1, 1991. The availability of this single sum distribution is conditioned on the employee having a particular disability at the time of termination of employment. The only employee of the employer who meets this disability requirement at the time of the amendment and thereafter through December 31, 1990, is a highly compensated employee. Generally, a disability condition with respect to the availability of a single sum distribution may be disregarded in determining whether the current availability of such optional form of benefit is discriminatory. However, these facts and circumstances indicate that the effective availability of the optional form of benefit substantially favors the highly compensated group.
Example 4. Employer Z maintains a money purchase pension plan that covers all employees of the employer. The plan provides for distribution in the form of a joint and survivor annuity, a life annuity, or equal installments over 10 years. During the 1992 calendar year the employer winds up his business. In December of 1992, only two employees remain in the employment of the employer, both of whom are highly compensated. Employer Z then amends the plan to provide for a single sum distribution to employees who terminate from employment on or after the date of the amendment. Both highly compensated employees terminate from employment on December 31, 1992, taking a single sum distribution of their benefits. These facts and circumstances indicate that the effective availability of the single sum optional form of benefit substantially favors the highly compensated group.
(b)Application of tests -
(1)Current availability -
(i)In general. Except as otherwise provided in this paragraph (b), in determining whether an optional form of benefit that is subject to specified eligibility conditions is currently available to an employee for purposes of paragraph (a) of this Q&A-2, the determination of current availability generally is to be based on the current facts and circumstances with respect to the employee (e.g., the employee's current compensation or the employee's current net worth). Thus, for example, the fact that an employee may, in the future, satisfy an eligibility condition generally does not cause an optional form of benefit to be treated as currently available to such employee.
(ii)Exceptions for age, service, employment termination and certain other conditions -
(A)Age and service conditions. For purposes of applying paragraph (a)(2) of this Q&A-2, except as provided in paragraph (b)(1)(ii)(B) of this Q&A-2, an age condition, a service condition, or both are to be disregarded. For example, an employer that maintains a plan that provides for an early retirement benefit payable as an annuity for employees in division A, subject to a requirement that the employee has attained his or her 55th birthday and has at least twenty years of service with the employer, is to disregard the age and service conditions in determining the group of employees to whom the early retirement annuity benefit is currently available. Thus, the early retirement annuity benefit is treated as currently available to all employees of division A, without regard to their ages or years of service and without regard to whether they could potentially meet the age and service conditions prior to attaining the plan's normal retirement age.
(B)Exception for certain age and service conditions. Age and service conditions that must be satisfied within a specified period of time may not be disregarded pursuant to paragraph (b)(1)(ii)(A) of this Q&A-2. However, in determining the current availability of an optional form of benefit subject to such an age condition, service condition, or both, an employer may project the age and service of employees to the last date on which the optional form of benefit subject to the age condition or service condition (or both) is available under the plan. An employer's ability to protect age and service to the last date on which the optional form of benefit is available under the plan is not cut off by a plan termination occurring prior to that date. Thus, for example, assume that an employer maintaining a plan that permits employees terminating from employment on or after age 55 between June 1, 1991 to May 31, 1992, to elect a single sum distribution, decides to terminate the plan on December 31, 1991. In determining the group of employees to whom the single sum optional form of benefit is currently available, this employer may project employees' ages through May 31, 1992.
(C)Certain other conditions disregarded. Conditions on the availability of optional forms of benefit requiring termination of employment, death, satisfaction of a specified health condition (or failure to meet such condition), disability, hardship, marital status, default on a plan loan secured by a participant's account balance, or execution of a covenant not to compete may be disregarded in determining the group of employees to whom an optional form of benefit is currently available.
(2)Employees taken into account. For purposes of applying paragraph (a) of this Q&A-2, the tests are to be applied on the basis of the employer's nonexcludable employees (whether or not they are participants in the plan) in the same manner as such tests would be applied in determining whether the plan providing the optional form of benefit satisfies the tests under section 410(b).
(3)Definition of "plan". For purposes of applying paragraph (a) of this Q&A-2, the term "plan" has the meaning that such term has for purposes of determining whether the amount of contributions or benefits and whether other benefits, rights, and features are nondiscriminatory under section 401(a)(4).
(4)Restructuring optional forms of benefit -
(i)In general. For purposes of applying paragraph (a) of this Q&A-2, the availability of two or more optional forms of benefit under a plan may be tested by restructuring such benefits into two or more restructured optional forms of benefit and testing the availability of such restructured optional forms of benefit. If two or more optional forms of benefit under a plan contain both common and distinct components, such optional forms of benefit may be restructured as a single optional form of benefit comprising the common component, and one or more optional forms of benefit comprising each distinct component. Components of optional forms of benefit may be treated as common only if they are identical with respect to all characteristics taken into account under Q&A-1(b) of § 1.411(d)-4 . The availability of each restructured optional form of benefit must satisfy the applicable nondiscrimination requirements of paragraph (a) of this Q&A-2.
(ii)Example. A profit-sharing plan covering all the employees of an employer provides a single sum distribution option upon termination from employment for all employees earning less than $50,000 and a single sum distribution option upon termination from employment after the attainment of age 55 for all employees earning $50,000 or more. These distribution options are identical in all other respects. For purposes of applying section 401(a)(4), such optional forms of benefit may be restructured into two different optional forms of benefit:
(A) a single sum distribution option upon termination from employment after the attainment of age 55 for all employees (i.e., the common component), and
(B) a single sum distribution option upon termination from employment before the attainment of age 55 for all employees earning less than $50,000. The availability of each of these restructured optional forms of benefit must satisfy section 401(a)(4).
(c)Commissioner may provide additional tests. The Commissioner may provide such additional factors, tests, and safe harbors as are necessary or appropriate for purposes of determining whether the availability of an optional form of benefit is discriminatory under section 401(a)(4). In addition, the Commissioner may provide that additional eligibility conditions not related directly or indirectly to compensation or wealth may be disregarded under paragraph (b)(1)(ii)(C) of this Q&A-2 in determining the current availability of an optional form of benefit. The Commissioner may provide such additional guidance only through the publication of revenue rulings, notices or other documents of general applicability.

Q-3: May a plan condition the availability of an optional form of benefit on employer discretion?

A-3: No. Even if the availability of an optional form of benefit that is conditioned on employer discretion satisfies the nondiscrimination requirements of section 401(a)(4), the plan providing the optional form of benefit will fail to satisfy certain other requirements of section 401(a), including, in applicable circumstances, the definitely determinable requirement of section 401(a) and the requirements of section 401(a)(25) and section 411(d)(6). See § 1.411(d)-4 .

Q-4: Will a plan provision violate section 401(a)(4) merely because it requires that an employee who terminates from service with the employer receive a single sum distribution in the event that the present value of the employee's benefit is not more than $3,500, as permitted by sections 411(a)(11) and 417(e)?

A-4: No. A plan will not be treated as discriminatory under section 401(a)(4) merely because the plan mandates a single sum distribution when the present value of an employee's benefit is not more than $3,500, as permitted by sections 411(a)(11) and 417(e). This is an exception to the general principles of this section. (No similar provision exists excepting such single sum distributions from the limits on employer discretion under section 411(d)(6). See § 1.411(d)-4 Q&A-4.)

Q-5: If the availability of an optional form of benefit discriminates, or may reasonably be expected to discriminate, in favor of the highly compensated group, what acceptable alternatives exist for amending the plan without violating section 411(d)(6)?

A-5:

(a)Transitional rules -
(1)In general. The following rules apply for purposes of making necessary amendments to existing plans (as defined in Q&A-6 of this section) under which the availability of an optional form of benefit violates the nondiscrimination requirements of section 401(a)(4) or may reasonably be expected to violate such requirements. These transitional rules are provided under the authority of section 411(d)(6), which allows the elimination of certain optional forms of benefit if permitted by regulations, and section 7805(b).
(2)Nondiscrimination -
(i)In general. The determination of whether the availability of an optional form of benefit violates section 401(a)(4) is to be made in accordance with Q&A-2 of this section. In addition, the availability of a particular optional form of benefit may reasonably be expected to violate the nondiscrimination requirements of section 401(a)(4) if, under the applicable facts and circumstances, there is a significant possibility that the current availability of such optional form of benefit will impermissibly favor the highly compensated group. This determination must be made on the basis of the seventy percent test of section 410(b)(1)(A) or the nondiscriminatory classification test of section 410(b)(1)(B) as such tests existed prior to the effective date of the amendments made to section 410(b) by section 1112(a) of TRA '86. Thus, a condition may not reasonably be expected to discriminate for purposes of these rules merely because it results in a significant possibility that discrimination will result because of the amendments made to section 410(b) by section 1112(a) of TRA '86. In addition, the availability of an optional form of benefit may not reasonably be expected to discriminate merely because of an age or service condition that may be disregarded in determining the current availability of such optional form of benefit under paragraph (b)(1)(ii)(A) of Q&A-2 of this section. Similarly, the availability of an optional form of benefit may not reasonably be expected to discriminate merely because of an age or service condition that, after permitted projection, does not cause such optional form to fail to satisfy the requirement of this paragraph (a)(2).
(ii)Examples. The provisions of paragraph (a)(2)(i) of this Q&A-5 can be illustrated by the following examples:
Example 1. A plan provides that a single sum distribution option is available only to (A) employees earning $50,000 or more in the final year of employment, (B) employees who furnish evidence that they have a net worth above a certain specified amount, and (C) employees who present a letter from an accountant or attorney declaring that it is in the employee's best interest to receive a single sum distribution. Whether the availability of such optional form of benefit discriminates depends on whether it meets the requirements of Q&A-2 of this § 1.401(a)-4 . However, each of the specified conditions limiting the availability of the optional form of benefit may reasonably be expected to discriminate in favor of the highly compensated group in operation because of the likelihood of a significant positive correlation between the ability to meet any of the specified conditions and membership in the highly compensated group.
Example 2. A plan limits the availability of a single sum distribution option to employees employed in one particular division of the employer's company. All the employees of the company are participants in the plan. During the 1988 plan year, the division employs individuals who represent a nondiscriminatory classification of that company's employees (under section 410(b)(1)(B) prior to the effective date of the amendments made to section 410(b) by section 1112(a) of TRA '86) and is unlikely to cease employing such a nondiscriminatory classification in the future. The availability of a single sum distribution under this plan does not result in discrimination during the 1988 plan year and may not reasonably be expected to do so.
(b)Transitional alternatives. If the availability of an optional form of benefit under an existing plan is discriminatory under section 401(a)(4), the plan must be amended either to eliminate the optional form of benefit or to make the availability of the optional form of benefit nondiscriminatory. For example, the availability of an optional form of benefit may be made nondiscriminatory by making such benefit available to sufficient additional employees who are not in the highly compensated group or by imposing nondiscriminatory objective criteria on its availability such that the group of employees to whom the benefit is available is nondiscriminatory. See Q&A-6 of § 1.411(d)-4 for requirements with respect to such objective criteria. If, under an existing plan, the availability of an optional form of benefit may reasonably be expected to discriminate, the plan may be amended in the same manner permitted where the availability of an optional form of benefit is discriminatory. See paragraph (d) of this Q&A-5 for rules limiting the period during which the availability of optional forms of benefit may be eliminated or reduced under this paragraph.
(c)Compliance and amendment date provisions -
(1)Operational compliance requirement. On or before the applicable effective date for the plan (see Q&A-6 of this section), the plan sponsor must select one of the alternatives permitted under paragraph (b) of this Q&A-5 with respect to each affected optional form of benefit and the plan must be operated in accordance with this selection. This is an operational requirement and does not require a plan amendment prior to the period set forth in paragraph (c)(2) of this Q&A-5. There is no special reporting requirement under the Code or this section with respect to this selection.
(2)Deferred amendment date. If paragraph (c)(1) of this Q&A-5 is satisfied, a plan amendment conforming the plan to the particular alternative selected under paragraph (b) of this Q&A-5 must be adopted within the time period permitted for amending plans in order to meet the requirements of section 410(b) as amended by TRA '86. Such conforming amendment must be consistent with the sponsor's selection as reflected by plan practice during the period from the effective date to the date the amendment is adopted. Thus, for example, if an existing calendar year noncollectively bargained defined benefit plan has a single sum distribution form subject to a discriminatory condition, that was available as of January 30, 1986 (subject to such condition), and such employer makes one or more single sum distributions available on or after the first day of the first plan year commencing on or after January 1, 1989, and before the plan amendment, then such employer may not adopt a plan amendment eliminating the single sum distribution form. Instead, such employer must adopt an amendment making the distribution form available to a nondiscriminatory group of employees while retaining the availability of such distribution form with respect to the group of employees to whom the benefit is already available. Similarly, any objective criteria that are adopted as part of such amendment must be consistent with the plan practice for the applicable period prior to the amendment. A conforming amendment under this paragraph (c)(2) must be made with respect to each optional form of benefit for which such amendment is required and must be retroactive to the applicable effective date.
(d)Limitation on transitional alternatives. The transitional alternatives permitting the elimination or reduction of optional forms of benefit will not violate section 411(d)(6) during the period prior to the applicable effective date for the plan (see Q&A-6 of this section). After the applicable effective date, any amendment (other than one described in paragraph (c)(2) of this Q&A-5) that eliminates or reduces an optional form of benefit or imposes new objective criteria restricting the availability of such optional form of benefit will fail to qualify for the exception to section 411(d)(6) provided in this Q&A-5. This is the case without regard to whether the availability of the optional form of benefit is discriminatory or may reasonably be expected to be discriminatory.

Q-6: For what period are the rules of this section effective?

A-6:

(a)General effective date -
(1)In general. Except as otherwise provided in this section, the provisions of this section are effective January 30, 1986, and do not apply to plan years beginning on or after January 1, 1994. For rules applicable to plan years beginning on or after January 1, 1994, see §§ 1.401(a)(4) -1 through 1.401(a)(4)-13.
(2)Plans of tax-exempt organizations. In the case of plans maintained by organizations exempt from income taxation under section 501(a), including plans subject to section 403(b)(12)(A)(i) (nonelective plans), except as otherwise provided in this section, the provisions of this section are effective January 30, 1986, and do not apply to plan years beginning on or after January 1, 1996. For rules applicable to plan years beginning on or after January 1, 1996, see §§ 1.401(a)(4) -1 through 1.401(a)(4)-13.
(b)New plans -
(1)In general. Unless otherwise provided in paragraph (b)(2) of this Q&A-6, plans that are either adopted or made effective on or after January 30, 1986, are "new plans". With respect to such new plans, this section is effective January 30, 1986. This effective date is applicable to such plans whether or not they are collectively bargained.
(2)Exception with respect to certain new plans. Plans that are new plans as defined in paragraph (b)(1) of this Q&A-6, under which the availability of an optional form of benefit is discriminatory or may reasonably be expected to be discriminatory, and that receive a favorable determination letter that covered such plan provisions with respect to an application submitted prior to July 11, 1988, will be treated as existing plans with respect to such optional form of benefit for purposes of the transitional rules of this section. Thus, such plans are eligible for the compliance and amendment alternatives set forth in the transitional rule in Q&A-5 of this section.
(c)Existing plans -
(1)In general. Plans that are both adopted and in effect prior to January 30, 1986, are "existing plans". In addition, new plans described in paragraph (b)(2) of this Q&A-6 are treated as existing plans with respect to certain forms of benefit. Subject to the limitations in paragraph (d) of this Q&A-6, the effective dates set forth in paragraphs (c)(2) and (c)(3) of this Q&A-6 apply to these existing plans for purposes of this section.
(2)Existing noncollectively bargained plans. With respect to existing noncollectively bargained plans, this section is effective for the first day of the first plan year commencing on or after January 1, 1989.
(3)Existing collectively bargained plans. With respect to existing collectively bargained plans, this section is effective for the later of the first day of the first plan year commencing on or after January 1, 1989, or the first day of the first plan year that the requirements of section 410(b) as amended by TRA '86 apply to such plan.
(d)Delayed effective dates not applicable to new optional forms of benefit or conditions -
(1)In general. The delayed effective dates in paragraph (c) (2) and (3) of this Q&A-6 for existing plans are applicable with respect to an optional form of benefit only if both the optional form of benefit and any applicable condition either causing the availability of such optional form of benefit to be discriminatory or making it reasonable to expect that the availability of such optional form will be discriminatory were both adopted and in effect prior to January 30, 1986. If the preceding sentence is not satisfied with respect to an optional form of benefit, this section is effective with respect to such optional form of benefit as if the plan were a new plan.
(2)Exception for certain amendments covered by a favorable determination letter. If a condition causing the availability of an optional form of benefit to be discriminatory, or to be reasonably expected to discriminate, was adopted or made effective on or after January 30, 1986, and a favorable determination letter that covered such plan provision is or was received with respect to an application submitted before July 11, 1988, the effective date of this section with respect to such provision is the applicable effective date determined under the rules with respect to existing plans, as though such provision had been adopted and in effect prior to January 30, 1986.
(e)Transitional rule effective date. The transitional rule provided in Q&A-5 of this section is effective January 30, 1986.

26 C.F.R. §1.401(a)-4

53 FR 26054, July 11, 1988, as amended by T.D. 8360, 56 FR 47536, Sept. 19, 1991; T.D. 8485, 58 FR 46778, Sept. 3, 1993; T.D. 8212, 61 FR 14247, Apr. 1, 1996