No permanent employee shall be laid off while employees working in an extra help, seasonal, temporary, provisional or probationary status are retained in the same class unless that employee has been offered the extra help, seasonal, temporary or provisional appointment. The order of layoff among employees not having permanent status shall be according to the following categories:

• Extra help or seasonal
• Temporary
• Provisional
• Probationary

Layoffs shall be by job class according to reverse order of seniority as determined by total continuous County civil service, except as specified above.

The following provisions shall apply in computing total continuous service:

• Time spent on military leave, leaves to accept temporary employment outside the County government and leave to accept a position in the unclassified service shall count as County service.
• Periods of time during which an employee is required to be absent from their position due to an injury or disease for which they are entitled to and currently receiving Worker’s Compensation benefits shall be included in computing length of service for purposes of determining seniority rights.
• Time worked as an extra help or seasonal shall not count as County s
• Time worked in a permanent, probationary, provisional or temporary status shall count as County s Part-time status shall count at the rate of one year of continuous employment for each 2080 straight-time hours worked.

If two or more employees have the same seniority, the examination scores for their present classes shall determine seniority.