Does the reduced percentage of time need to be the same during each month of my ERIT contract or can it vary as long as the average % reduction over the period of my participation in ERIT is the same as the % reduction reflected in my ERIT contract?

You should have the same reduction in time and pay in each pay period of your ERIT contract. However, with your department head’s approval, your work schedule within a pay period may be flexible from week to week as long as the total time reduced during the pay period is the same as the percentage time reflected in your ERIT contract.