3. Definition of hour of service
0325 Publ 6088 (PDF) · 2026-10-03 edition · updated 2026-10-04 · United States
Statement of Requirement: DOL Reg. §§ 2530.200b-2, 2530.200b-3; Code §§ 410(a)(5)(E), 411(a)(6)(E); Rev. Proc. 2023-37, 2023-51 I.R.B. 1491, sec. 9.03(1)
Sample Plan Language:
Hour of service means:
(1) Each hour for which an employee is paid, or entitled to payment, for the performance of duties for the employer. These hours will be credited to the employee for the computation period in which the duties are performed; and
(2) Each hour for which an employee is paid, or entitled to payment, by the employer on account of a period of time during which no duties are performed (irrespective of whether the employment relationship has terminated) due to vacation, holiday, illness, incapacity (including disability), layoff, jury duty, military duty or leave of absence. No more than 501 hours of service will be credited under this paragraph for any single continuous period (whether or not such period occurs in a single computation period). Hours under this paragraph will be calculated and credited pursuant to section 2530.200b-2 of the Department of Labor Regulations which is incorporated herein by this reference; and
(3) Each hour for which back pay, irrespective of mitigation of damages, is either awarded or agreed to by the employer. The same hours of service will not be credited both under paragraph (1) or paragraph (2), as the case may be, and under this paragraph (3). These hours will be credited to the employee for the computation period or periods to which the award or agreement pertains rather than the computation period in which the award, agreement or payment is made.
(4) Hours of service will be credited for employment with other members of an affiliated service group (under section 414(m)), a controlled group of corporations (under section 414(b)), or a group of trades or businesses under common control (under section 414(c)) of which the adopting employer is a member, and any other entity required to be aggregated with the employer pursuant to section 414(o). Hours of service will also be credited for any individual considered an employee for purposes of this plan under section 414(n).
(5) Solely for purposes of determining whether a break in service, as defined in section _______ (INSERT PLAN SECTION CORRESPONDING TO THE PLAN SECTION DEFINING A BREAK IN SERVICE) for participation and vesting purposes has occurred in a computation period, an individual who is absent from work for maternity or paternity reasons shall receive credit for the hours of service which would
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otherwise have been credited to such individual but for such absence, or in any case in which such hours cannot be determined, 8 hours of service per day of such absence. For purposes of this paragraph, an absence from work for maternity or paternity reasons means an absence (a) by reason of the pregnancy of the individual, (b) by reason of a birth of a child of the individual, (c) by reason of the placement of a child with the individual in connection with the adoption of such child by such individual, or (d) for purposes of caring for such child for a period beginning immediately following such birth or placement. Hours of service credited under this paragraph shall be credited in the computation period in which the absence begins if the crediting is necessary to prevent a break in service in that period, or in all other cases, in the following computation period, but in no instance more than 501 hours.
( Optional: Service will be determined on the basis of the method selected in the adoption agreement.)
Sample Adoption Agreement Language: (If preceding paragraph is used in the plan language)
Service will be determined on the basis of the method selected below. Only one method may be selected. The method selected will be applied to all employees covered under the plan.
( ) On the basis of actual hours for which an employee is paid or entitled to payment.
( ) On the basis of days worked. An employee will be credited with ten (10) hours of service if under section _____ of the plan such employee would be credited with at least one (1) hour of service during the day.
( ) On the basis of weeks worked. An employee will be credited with forty-five (45) hours of service if under section _____ of the plan such employee would be credited with at least one (1) hour of service during the week.
( ) On the basis of semi-monthly payroll periods. An employee will be credited with ninety-five (95) hours of service if under section _____ of the plan such employee would be credited with at least one (1) hour of service during the semi-monthly payroll period.
( ) On the basis of months worked. An employee will be credited with one hundred ninety (190) hours of service if under section _____ of the plan such employee would be credited with at least one (1) hour of service during the month.
(Note to reviewer: The blanks should be filled in with the plan section number that contains the definition of hour of service.)
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( ) On the basis of elapsed time, as provided for in section _____ of the plan.
(Note to reviewer: The blank should be filled in with the plan section number corresponding to LRM #4.)
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