Newtown, and Rhyl have also played in the league. In 2018, the NPL's member clubs voted 37–27, with one abstention and three clubs' absence, to split Step 4 (level 8) divisions from east to west starting from the 2018–19 season, and one year later, the league published its successful bid to add another division at Step 4 initially in 2020, further altering Division One into northwest and southeast for travel reasons. After the Football Association (FA) deferred its implementation of changes to the NLS, the NPL's additional division was created in 2021 instead. 1968–69 to 1986–87: Premier Division 1987–88 to 2006–07: Premier Division, Division One 2007–08 to 2017–18: Premier Division, Division One North, Division One South 2018–19: Premier Division, Division One East, Division One West 2019–20 to 2020–21: Premier Division, Division One North West, Division One South East 2021–22 onwards: Premier Division, Division One West, Division One East, Division One Midlands Sponsorship Owing to title sponsorship deals, the league has been billed under various names, including a sixteen-year spell as the Unibond League, the longest such deal in world football. When this deal ended in 2010, a new deal was announced which saw the competition billed as the Evo-Stik League until the 2017–18 season. The League announced on 8 July 2019 that a two-year deal for seasons 2019-20 and 2020-21 had been agreed with new sponsor BetVictor. This sponsorship agreement with BetVictor was subsequently terminated early in April 2020 with a replacement, Entain's Pitching In, announced as the next sponsor for 2020–21. At the time of announcement, Entain went by its former name GVC Holdings. Under this partnership, the NPL is marketed as one of the three Trident Leagues, alongside its Isthmian and Southern counterparts. Structure Since 2021, the NPL has had four divisions: the Premier Division, Division One Midlands, Division One West and Division One East. Prior to 2007 there was just a single Division One, and from 2018 to 2021 Division One was arranged on a north-south, then east-west basis. The Premier Division has 22 clubs, with the champions promoted to the National League along with the winners of a playoff between the second to fifth place clubs. Theoretically, clubs from the NPL could be promoted into either of the National League's two regional divisions, but the geographical footprint of the NPL has never overlapped with that of the National League South, so (as of 2015) all promoted