Can an employee who works a 4/10 or 9/80 schedule participate in ERIT?

Yes, employees who work these alterative schedules can participate in ERIT.  For example, an employee on a 4/10 schedule who wants to reduce to 90 percent time could work a 4/9 schedule by reducing each work day by 10% (an hour each day); while an employee on a 9/80 schedule can work a 9/72 schedule by working 8 hours per day (a 10% reduction).