[7] In 2009, several USL First Division clubs expressed dissatisfaction with the league's leadership and structure, leading to a significant split.

These clubs formed a breakaway competition called the North American Soccer League (NASL), which aimed to operate as a separate second division under the USSF.

In response, the USSF organized a temporary combined league in 2010 before officially sanctioning the NASL as a separate entity.

[11][12] On February 13, 2025, the USL announced plans to launch a Division I league in 2027 to compete directly with MLS, pending USSF approval.

It also stated its intention to eventually introduce a promotion and relegation system like most other global soccer leagues.