USL League Two (USL2), formerly the Premier Development League (PDL), is an amateur developmental soccer league sponsored by United Soccer Leagues in the United States and Canada, forming part of the United States soccer league system. The league features 83 teams for 2021, split into twelve regional divisions across four conferences. Unofficially, it is considered to be the fourth tier of competition, behind Major League Soccer (Division I), USL Championship (Division II), USL League One and NISA (Division III), and roughly equal with National Premier Soccer League (unofficial Division IV). USL League Two is headquartered in Tampa, Florida.