Federal job classification systems vary by agency, but the most widely used is the General Schedule (GS), which covers most civilian white-collar positions. Most federal employees must be U.S.

THE WEEK'S MOST POPULAR SONGS BASED ON STREAMING AND SALES ACTIVITY FROM OVER 200 TERRITORIES AROUND THE WORLD — EXCLUDING THE UNITED STATES — AS TRACKED BY LUMINATE. THE RANKING IS BASED ON A ...