evidence: The Department may make unannounced inspections of facilities. [...] The extended evaluation period shall not be used to allow additional time to complete the required assessments under 603 CMR 28.04(2)(a). [...] Upon receipt of required documentation, the Department may grant approval for a period of time not to exceed three years from the date of application. The Department may withhold such approval if it deems that circumstances warrant such action. In such case, the Department will notify the Massachusetts school district and the out-of-state program of its actions and the reason for such actions.