Wage Enhancements. Any bargaining unit members’ base hourly wage shall be increased by the dollar amount of one or more enhancements listed in Appendix B. Wage enhancements apply to all hours worked, and will not be removed unless the applicable license or certification triggering the wage enhancement lapses. Northwest Center management shall make the determination at the time of hire as to whether the requirements for any given wage enhancement is met. In the event a current employee obtains a degree, certification, language fluency or other specific criteria for a wage enhancement during the term of employment, the employee must notify Northwest Center management, which shall make the determination as to whether the requirements for the requested wage enhancement is met, and if they are, implement the wage enhancement effective the first day of the first full period after the request is made. In the event the Union disagrees with Northwest Center’s determination as to a wage enhancement, the dispute shall be addressed through a grievance pursuant to Article 17.