Football in USA

The United States soccer league system, sometimes called the American soccer pyramid, is a series of professional and amateur leagues based, in whole or in part, in the United States. For practical and historical reasons, some teams fromAntigua and Barbuda, Bermuda, Canada and Puerto Rico (considered a separate country by FIFA) also compete in these leagues, although they are not eligible for the Lamar Hunt U.S. Open Cup, which is open only to teams affiliated with US Soccer, and cannot represent the United States in the CONCACAF Champions League; only USSF-affiliated teams can represent the U.S. in the continental tournament.

The United States is unusual in that its leagues are not linked by a system of promotion and relegation, just as none of Major professional sports leagues in the United States and Canada are; however, its soccer leagues are still organized into tiers based on standards set by the USSF.

Tier	League(s)/Division(s)
Sanctioned by USSF as Professional Leagues
USSF Division I	Major League Soccer (MLS) 16 US clubs and 3 Canadian clubs Eastern Conference Western Conference
USSF Division II	North American Soccer League (NASL) 7 US clubs and 1 Canadian club
USSF Division III	United Soccer Leagues Professional Division (USL Pro) 12 US clubs and 1 Antiguan club
Sanctioned through Organization Members of USSF*
4	United Soccer Leagues Premier Development League (PDL) 56 clubs (in 4 conferences) (plus 8 Canadian clubs & 1 Bermudian club) Central Conference Eastern Conference Southern Conference Western Conference	Affiliated through United States Adult Soccer Association (USASA)
		National Premier Soccer League (NPSL) 59 clubs (in 4 divisions) Northeast Division South Division Midwest Division West Division	Pacific Coast Soccer League (PCSL) 15 clubs (in 2 divisions) 14 Canadian[4] Premier Division Reserve Division
5	US Club Soccer (USCS) 39 leagues in 4 regions East Region Midwest Region South Region West Region	United States Adult Soccer Association state leagues 55 state associations in 4 regions See List of USASA affiliated leagues for complete list Region I Region II Region III Region IV