Merit System Pay Plans As of January 1, 2020: Merit Pay Plan Merit Alpha Matrix Merit Lead Status Pay Plan Merit Trainee Pay Plan Professional and Scientific (P&S) Pay Plans As of July 1, 2019: Pay Structure A Pay Structure B Temporary Hourly Pay Structure A Temporary Hourly Pay Structure B Service Employees International Union (SEIU) Pay Plans As of July 1, 2019: SEIU Pay Plan