Safe harbors
(b) Safe harbors(1) In general. The employer contributions allocated under a defined contribution plan are nondiscriminatory in amount for a plan year if the plan satisfies either of the safe harbors in paragraph (b)(2) or (b)(3) of this section. Paragraph (b)(4) of this section provides exceptions for certain plan provisions that do not cause a plan to fail to satisfy this paragraph (b). (2) Safe harbor for plans with uniform allocation formula(i) General rule. A defined contribution plan satisfies the safe harbor in this paragraph (b)(2) for a plan year if the plan allocates all amounts taken into account under paragraph (c)(2)(ii) of this section for the plan year under an allocation formula that allocates to each employee the same percentage of plan year compensation, the same dollar amount, or the same dollar amount for each uniform unit of service (not to exceed one week) performed by the employee during the plan year. (ii) Permitted disparity. If a plan satisfies section 401(l) in form, differences in employees' allocations under the plan attributable to uniform disparities permitted under 1.401(l)-2 (including differences in disparities that are deemed uniform under 1.401(l)-2(c)(2)) do not cause the plan to fail to satisfy this paragraph (b)(2). (3) Safe harbor for plans with uniform points allocation formula(i) General rule. A defined contribution plan (other than an ESOP) satisfies the safe harbor in this paragraph (b)(3) for a plan year if it satisfies both of the following requirements: (A) The plan must allocate amounts under a uniform points allocation formula. A uniform points allocation formula defines each employee's allocation for the plan year as the product of the total of all amounts taken into account under paragraph (c)(2)(ii) of this section and a fraction, the numerator of which is the employee's points for the plan year and the denominator of which is the sum of the points of all employees in the plan for the plan year. For this purpose, an employee's points for a plan year equal the sum of the employee's points for age, service, and units of plan year compensation for the plan year. Under a uniform points allocation formula, each employee must receive the same number of points for each year of age, the same number of points for each year of service, and the same number of points for each unit of plan year compensation. (See 1.401(a)(4)-11(d)(3) regarding service that may be taken into account as years of service.) A uniform points allocation formula need not grant points for both age and service, but it must grant points for at least one of them. If the allocation formula grants points for years of service, the plan is permitted to limit the number of years of service taken into account to a single maximum number of years of service. A uniform points allocation formula need not grant points for units of plan year compensation, but if it does, the unit used must be a single dollar amount for all employees that does not exceed $200. (B) For the plan year, the average of the allocation rates for the HCEs in the plan must not exceed the average of the allocation rates for the NHCEs in the plan. For this purpose, allocation rates are determined in accordance with paragraph (c)(2) of this section, without imputing permitted disparity and without grouping allocation rates under paragraphs (c)(2) (iv) and (v) of this section, respectively. (ii) Example. The following example illustrates the safe harbor in this paragraph (b)(3): (4) Use of safe harbors not precluded by certain plan provisions(i) In general. A plan does not fail to satisfy this paragraph (b) merely because the plan contains one or more of the provisions described in this paragraph (b)(4). Unless otherwise provided, any such provision must apply uniformly to all employees. (ii) Entry dates. The plan provides one or more entry dates during the plan year as permitted by section 410(a)(4). (iii) Certain conditions on allocations. The plan provides that an employee's allocation for the plan year is conditioned on either the employee's employment on the last day of the plan year or the employee's completion of a minimum number of hours of service during the plan year (not to exceed 1,000), or both. Such a provision may include an exception from this condition for all employees whose employment terminates during the plan year or only for those employees whose employment terminates during the plan year on account of one or more of the following circumstances: retirement, disability, death, or military service. (iv) Certain limits on allocations. The plan limits allocations otherwise provided under the allocation formula to a maximum dollar amount or a maximum percentage of plan year compensation, limits the dollar amount of plan year compensation taken into account in determining the amount of allocations, or applies the restrictions of section 409(n) or the limits of section 415. (v) Lower allocations for HCEs. The allocations provided to one or more HCEs under the plan are less than the allocations that would otherwise be provided to those employees if the plan satisfied this paragraph (b) (without regard to this paragraph (b)(4)(v)). (vi) Multiple formulas(A) General rule. The plan provides that an employee's allocation under the plan is the greater of the allocations determined under two or more formulas, or is the sum of the allocations determined under two or more formulas. This paragraph (b)(4)(vi) does not apply to a plan unless each of the formulas under the plan satisfies the requirements of paragraph (b)(4)(vi) (B) through (D) of this section. (B) Sole formulas. The formulas must be the only formulas under the plan. (C) Separate testing. Each of the formulas must separately satisfy this paragraph (b). A formula that is available solely to some or all NHCEs is deemed to satisfy this paragraph (b)(4)(vi)(C). (D) Availability(1) General rule. All of the formulas must be available on the same terms to all employees.