From what the headmaster has gathered, some of teaching staff have neglected their pupils. She has just announced that strict work regulations have been made and that they apply to both Chinese and overseas teachers.

请教老师，

1. have neglected 表示“到目前收集为止”这一时期中所发生的状况， 和has gathered相呼应。是吗？

2. has just announced 表示“对现状有影响的动作”即：regulations已经生效，开始实施。可是后面为何使用 have been made而不是一般过去时态“made”？难道不是先“制定规章制度，后宣布”吗？为何是并行使用“现在完成时态”？

3. apply to 一般时态表示现在的情况或习惯，也表示未来以后也会按照制度办事，所以正确？

非常感谢！