After each class or position has been assigned to a salary grade and the pay plan and rules for its administration have been adopted by the governing body, each employee shall be advised of his pay step and the salary grade to which his position title has been assigned. When an employee attains the maximum step in the salary grade for his position, he shall not receive further salary increases unless:
A. 
His position is reclassified;
B. 
He is promoted to another position having a higher salary grade;
C. 
His position's salary range is increased; or
D. 
A general salary increase is granted to all employees.
If an employee is transferred or reassigned into another department, his service will be considered continuous for the purpose of promotion, seniority, layoff and vacation.