Spring League of American Football

The Spring League of American Football was a planned professional American football league. The league was first announced in September 2016 with an expected 10 teams with the first season starting in 2018, but as the starting date approached the league was still looking for an investment of $100 million, thus pushing its first season with eight teams back to 2019 or 2020.
The SLAF executive team consisted of former Madison Square Garden executive Michael Lardner and MSG Chief Financial Officer Robert Pollichino. According to the league management, they would like to create a relationship with the NFL as some sort of a developmental minor league.
In October 2018, the league’s trademarks were declared abandoned by the USPTO.

Premise

The league would split the country into 10 zones for the franchise based in the zone which would draw player from the colleges and high schools in the zone to have ready rivalries. Team owners would be able to place their team anywhere in the zone, and the season would run from April to July for 10 games plus playoffs:

Rules

The SLAF will play by rules of the National Football League, including having 11 players on the field and needing two feet inbounds on receptions. The lone exception would be overtime rule for which they will use college overtime rule instead of the NFL's.

Zones

Zone	States
Ohio Valley	Ohio, Kentucky, West Virginia, Indiana
Atlantic	Maryland, District of Columbia, Virginia, North Carolina, South Carolina
East	New York, Pennsylvania, Massachusetts, New Jersey, Rhode Island, Connecticut, New Hampshire, Vermont, Maine, Delaware
South	Tennessee, Mississippi, Alabama, Louisiana
South-East	Florida, Georgia
Plains	North Dakota, South Dakota, Nebraska, Kansas, Oklahoma, Colorado
Midwest	Michigan, Wisconsin, Illinois, Minnesota, Iowa, Missouri
South-West	Arkansas, Texas
North-West	Washington, Oregon, Idaho, Montana, Wyoming, Utah, Alaska, Hawaii
West	California, Nevada, New Mexico