The Disaster Time Bank shall continue in operation, with the administration of such bank under the control of the Association. The purpose of the Disaster Time Bank is to provide the employees covered herein, in the event of a natural disaster or severe personal crisis with a program whereby, the employee may be afforded the opportunity to have other employees fulfill the responsibilities to the City in terms of working for the employee for a period not to exceed ten (10) days per request. All other time off must be exhausted: vacation days, bonus days, discretionary vacation days and compensatory time. This is to exclude all sick time. A police officer may only work for a fellow officer if in so doing his hours worked within the work period will not exceed the maximum non-overtime hours limitation under the Fair Labor Standards Act. Notification of a contribution of hours worked must be provided to the Police Administration in advance.