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|Divisions||14 conferences in 4 regions|
|Number of teams||92|
|Level on pyramid||4 (US) (unofficial)|
|Domestic cup(s)||U.S. Open Cup|
|Current champions||Miami FC 2 (1st title)|
|Most championships||16 clubs (1 title each)|
|2019 NPSL season|
The National Premier Soccer League (NPSL) is an American soccer league commonly recognized as being a fourth tier league although it has been given no official designation by U.S. Soccer.  [a] Although the league is officially affiliated to the United States Adult Soccer Association (USASA) and qualifies for the U.S. Open Cup through USASA channels, the league is generally considered to be at the fourth tier of competition in the United States soccer pyramid, behind Major League Soccer (MLS) and the USL Championship (USLC), and roughly equal with USL League Two (USL2).  It is the successor of the Men's Premier Soccer League, a regional league originally based in the Western United States, which has now expanded nationwide to encompass teams from 29 states. The league's motto is "A National League with a Regional Focus". Some of the clubs are former USL clubs.
The National Premier Soccer League's is divided into four separate Regions (Northeast, South, Midwest, and West). Each Region is divided into conferences with varying number of teams per conference. The regular season runs from May to July with the exception of the West Region that has historically started in late March or early April. 
The National Premier Soccer League began in 2003 as the Men's Premier Soccer League (MPSL) initially as an offshoot of the Women's Premier Soccer League, and marked the first instance of a women's soccer league spawning a men's league. The league's first two champions were the Arizona Sahuaros, who had defected to the MPSL from the USL D-3 Pro League, and the Utah Salt Ratz.
The league expanded into the Midwest in 2005 with the addition of several new teams and a new conference, and changed its name to National Premier Soccer League to reflect its new national footprint; a team from the expansion conference – Detroit Arsenal – won the league in its first year after its eastward expansion. The NPSL expanded further in 2007 with the addition of a new Northeast Conference and five new teams from the eastern United States. The first team from the East to win the national NPSL title was the Pennsylvania Stoners in 2008. The league has since continued to expand, adding more teams throughout the entirety of the country.
Since its inception the league has managed to place at least one team actively playing under its banner into U.S. Open Cup competition. Though the showing of the NPSL in US Open Cup play was typically only one or two teams in its first six years, the 2009 and 2010 cups have seen four and three, respectively, NPSL teams in each tournament. The recent success of the NPSL in USASA qualifying has encouraged a movement by which the league could have automatic berths in the final tournament.  The furthest a team from the NPSL has reached in the US Open Cup during the professional era (1997 and onward after the entry of MLS teams) has been the third round. However, the Brooklyn Italians have won the US Open Cup outright before the existence of either MLS or the NPSL.
Officially the USSF does not recognize formal levels of the soccer pyramid below the professional 3rd tier. The USSF does not officially recognize distinctions between amateur soccer leagues in the United States. However, the USASA sanctions affiliated, but separately run, national leagues that are recognized in practical terms as playing at a higher level than the USASA state association leagues; for example, they receive automatic berths to the US Open Cup.
The Premier Development League takes place during the summer months, and the player pool is drawn mainly from NCAA college soccer players seeking to continue playing high level soccer during their summer break, while still maintaining their college eligibility. The National Premier Soccer League is similar to the Premier Development League and also attracts top amateur talent from around the United States. NPSL does not have any age limits or restrictions, thus incorporating both college players and former professional players alike.
The NPSL is organized in a mostly decentralized structure and is managed as a team-run league. Each year the member clubs help elect a chairman, treasurer, and secretary and an eight-member board of directors. Each team is individually owned and operated, and is responsible for maintaining league minimum standards. New teams seeking membership into the NPSL are subject to approval from an executive committee of existing team owners. Member clubs have the right to make localized decisions for their respective markets, conferences, and regions based on what they believe is best for their particular region. Each conference is managed by the individual member clubs and elect a conference commission each year.
The current chairman is Joe Barone of the Brooklyn Italians who was elected in late 2013 after previously serving as treasurer. Michael Hitchcock of Playbook Management Inc. was hired as commissioner of the NPSL in 2013. With Hitchcock leading the league, plans to expand the reach of the league and discussion of introducing promotion and relegation in the future were made public. Near the conclusion of the 2014 season the NPSL terminated the contract of Hitchcock and PMI.
The costs to join the league as of 2016 are reported to be a one-time $15,000 franchise fee and a $5,250 annual league fee.  The low entry fee compared to the PDL's of $75,000 has made the league an attractive alternative to teams looking to compete at the highest level of amateur play.
The league requires that all teams play in stadiums with at least 500 seats, a scoreboard, and locker rooms with showers for both teams and officials. The home team is also responsible for providing water and food for the visiting team, ensuring there is a trainer or doctor on-site for the match, and paying the referees fees at the end of each game.
Mitre Sports International provided the official ball for the NPSL starting in 2014, the sponsorship agreement lasted through the 2016 season. The league also announced several partnerships for the 2014 season, Global Scarves, Wecando, and Pabian Law. Global Scarves and the NPSL planned strategically partnering to not only outfit every NPSL team with soccer scarves branded to the specific team, but planned on working together to increase and elevate the status of both entities to a higher level. Global Scarves began providing custom soccer scarves throughout the league, and worked with the NPSL on various events and contests to increase awareness and fervor throughout the 2014 NPSL season. Wecando Print is a full-service branding company that specializes in printing, promotional products, embroidery, screen printing, banners, fulfillment services, and company stores. Pabian Law specific in law and immigration services and has experience with signing international soccer players.
|Planned Expansion Clubs|
|A.S. Los Angeles  ||Los Angeles, California||TBD||2018||2019||TBD|
|Central Florida Panthers SC ||Orlando, Florida||TBD||2019||2019||TBD|
|Crossfire Redmond ||Redmond, Washington||Redmond High School||2018||2019||Bernie James|
|Denton Diablos FC ||Denton, Texas||TBD||2018||2019||TBD|
|Stockton FC ||Stockton, California||TBD||2018||2019||TBD|
|High Desert Elite FC ||Spring Valley Lake, California||Adelanto Stadium||2018||2019||TBD|
|San Ramon FC ||San Ramon, California||TBD||2018||2019||TBD|
Eleven teams will participate in the inaugural NPSL Founders Cup, a competition that will run from August to November 2019. It is intended to lead to a new professional league beginning play in the spring of 2020.  
|Team||City||Stadium||Founded||First Founders Cup Season||Head coach|
|Chattanooga FC||Chattanooga, Tennessee||Finley Stadium||2009||2019||Bill Elliott|
|Detroit City FC||Hamtramck, Michigan||Keyworth Stadium||2012||2019||Trevor James |
|Miami FC||Miami Gardens, Florida||St. Thomas University||2018||2019||Paul Dalglish|
|Miami United FC||Hialeah, Florida||Ted Hendricks Stadium at Milander Park||2012||2019||Gerardo Reinoso|
|Milwaukee Torrent||Wauwatosa, Wisconsin||Hart Park||2015||2019||Andreas Davi|
|New York Cosmos||TBD||TBD||2010||2019||TBD|
|FC Arizona||Mesa, Arizona||John D. Riggs Stadium||2016||2019||Maxi Viera|
|ASC San Diego||San Diego, California||Mission Bay High School||2015||2019||Ziggy Korytoski|
|Cal FC||Agoura Hills, California||Agoura High School||2006||2019||Keith Costigan|
|California United Strikers FC||Irvine, California||Championship Soccer Stadium||2017||2019||TBD|
|Oakland Roots SC||Oakland, California||TBD||2018||2019||TBD|
|Year||No. of teams||Teams added||Teams departed|
Many NPSL teams have rivalries given the close geography of the teams throughout the league. The most notable rivalry is the Rust Belt Derby contested between Detroit City FC, AFC Cleveland, and FC Buffalo. The name refers to the teams' shared region, the Rust Belt. 
Another intense rivalry existed between the San Diego Flash and San Diego Boca/Force FC, which were crosstown rivals in San Diego. Until the 2013 sale and rebranding of Force FC from Boca FC, the ownership groups of the two clubs were previously partners in the original San Diego Flash club of the A-League that competed from 1998 to 2001. 
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|2003||Arizona Sahuaros||2–1 ( a.e.t.)||Utah Salt Ratz|
|2004||Utah Salt Ratz||4–2||Arizona Sahuaros|
|2005||Detroit Arsenal||1–0||Sonoma County Sol|
|2006||Sacramento Knights||2–1||Princeton 56ers|
|2007||Southern California Fusion||1–0||Queen City FC|
|2008||Pennsylvania Stoners||3–0||Minnesota Twin Stars|
|2009||Sonoma County Sol||2–1||Erie Admirals SC|
|2010||Sacramento Gold||3–1||Chattanooga FC|
|2011||Jacksonville United||3–2||Hollywood United Hitmen|
|2012||FC Sonic||1–0||Chattanooga FC|
|2013||RVA Football Club||2–0||Sonoma County Sol|
|2014||New York Red Bulls U-23||3–1||Chattanooga FC|
|2015||New York Cosmos B||3–2 ( a.e.t.)||Chattanooga FC|
|2016||AFC Cleveland||4–2||Sonoma County Sol|
|2017||Elm City Express||5–0||Midland-Odessa FC|
|2018||Miami FC 2||3–1||FC Motown|
- Joe Barone – Brooklyn Italians – chairman (2013–current)
- Cindy Spera – chairman of soccer programs for New York Athletic Club – managing director (2018–current) formerly treasurer (2013–2016) and director of operations (2016–2018) 
- Barry Dixon – founder, Jacksonville United – secretary (2013–present)
Current regional board members
- Kenny Farrell – New Orleans Jesters
- Sean McDaniel – Chattanooga FC
- Terry Lawriw – AFC Cleveland
- Cristian Brei – Madison 56ers
- William Forte – East Bay FC Stompers
- Kabba Joof – Rhode Island Reds FC
- Cindy Spera – managing director
- Gary Moody – media relations
- Paul Scott – director of officials
- Dina Case – director of membership development 
- Kabba Joof – head coach, Rhode Island Reds FC – Northeast Region – North Atlantic Conference (2013–present)
- Cristian Brei – Madison 56ers – Midwest Region – Central Conference (2013–present)
- William Forte – East Bay FC Stompers – West Region – Golden Gate Conference (2013–present)
- The United States soccer league system currently does not have a third-tier league, effectively making the NPSL part of the third-tier, along with the Premier Development League.
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- NPSL (January 18, 2017). "Napa Valley 1839 FC Brand Unveiled". Retrieved January 24, 2017.
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- NSPL (February 13, 2017). "PDX FC Joins the NPSL". Retrieved February 16, 2017.
- NPSL (January 19, 2017). "Spokane Soccer Club Shadow Joins the NPSL". Retrieved January 24, 2017.
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- https://twitter.com/ASLosAngelesFC[ non-primary source needed]
"CENTRAL FLORIDA SOCCER CLUB JOINS THE NPSL". Unknown parameter
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- "Denton Diablos FC joins NPSL as 2019 expansion team". Dallas News. Retrieved September 14, 2018.
- "STOCKTON FOOTBALL CLUB JOINS THE NPSL". Retrieved December 12, 2018.
- "HIGH DESERT ELITE FC JOINS THE NPSL". Retrieved December 12, 2018.
- "SAN RAMON FUTBOL CLUB JOINS THE NPSL". Retrieved December 12, 2018.
- "Eleven Founding Members To Launch A New League In Association With The National Premier Soccer League". NPSL.com. Retrieved November 15, 2018.
- "Founders Cup Teams". NPSL.com. Retrieved November 15, 2018.
- O'Connor, Larry. "Detroit City FC names Trevor James as new coach". The Detroit News. Retrieved January 4, 2019.
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