Whether daycare qualifies as "school" will be determined by the specific language of your order. Assuming that the order does not define daycare as school, the fact that your daughter is enrolled in daycare should not affect your summer possession (or, indeed, any other period of possessession). To enforce the provisions of your order, you may need to file a writ of habeas corpus or a motion to enforce.
Answered on Mar 04th, 2020 at 8:20 AM