We are in the process of implementing 9/80 schedule for hourly and salaried employees. I have couple of questions regarding that:

Are there any FLSA regulations around 9/80 work schedules? From what I have researched, FLSA requires that employees may work no more than 40 hours per week, and get overtime in additiona to 40 hours (for exempt). However, I have found no specific regulation around flexible schedules.

If the day off falls on a holiday, the employee gets either the day after or before as an off day. Does that work like a regular holiday, where employee gets paid for the holiday, and the day off?

What are the things that I should look out for in implementing 9/80 schedules for exempt employees, besides ensuring that the shifts start and end in such a way the an exempt employee works no more than 40 hours in a week, and paid overtime in addition to 40 hours.

Thank you,