2-18-612. Rate earned. (1) Vacation leave credits are earned at a yearly rate calculated in accordance with the following schedule, which applies to the total years of an employee's employment with any agency whether the employment is continuous or not:
| Years of employment | Working days credit |
| 1 day through 10 years | 15 |
| 10 years through 15 years | 18 |
| 15 years through 20 years | 21 |
| 20 years or more | 24 |
(2) (a) For the purpose of determining years of employment under this section, an employee eligible to earn vacation credits under 2-18-611 must be credited with 1 year of employment for each period of:
(i) 2,080 hours of service following the date of employment. An employee must be credited with 80 hours of service for each biweekly pay period in which the employee is in a pay status or on an authorized leave of absence without pay, regardless of the number of hours of service in the pay period.
(ii) 12 calendar months in which the employee was in a pay status or on an authorized leave of absence without pay, regardless of the number of hours of service in any 1 month. An employee of a school district, a school at a state institution, or the university system must be credited with 1 year of service if the employee is employed for an entire academic year.
(b) State agencies, other than the university system and a school at a state institution, shall use the method provided in subsection (2)(a)(i) to calculate years of service under this section.