Opm Time Between Step Increases – The OPM pay scale divides the pay scale into four categories, that are based on team members’ position within the government. Below is a table that outlines the general schedule OPM uses to calculate the national team’s salary scale, taking into account next year’s s projected 2.6 percent increase across the board. There exist three major categories that are part of the government gs levels. There are many agencies that do not adhere to all three categories. For example The Department of Veterans Affairs (VA) and the Department of Defense (DOD) does not use the same categories system. While they both use identical General Schedule OPM uses to calculate their employees’ wages but they differ in their federal gs-level structuring.