the UK's first vinyl record chart of the modern era was launched by the Official Charts Company due to 'the huge surge of interest' in the sector. The chart was launched following the growth of the sector in the UK for the seventh year in a row. In July 2015, Official Charts changed its chart methodology from traditional Sunday slot to the new Friday slot, effective on 10 July 2015 to coincide with the 'New Music Friday - Global Release Day' campaign set by IFPI which effective on 10 July 2015 as well. Beginning in 2017, the Official Charts Company changed its methodology for calculating the Top 40, intending to more accurately reflect the rise in music streaming. Prior to January 2017, 100 streams counted as one 'sale' of a song. From January onward, the ratio became 150:1. Additionally, in June 2017, it was decided that after a record has spent at least 10 weeks on the chart, any track which has declined for three consecutive weeks will see its streams:sales ratio change from 150:1 to 300:1, in an attempt to accelerate their disappearance from the chart. In mid-2019, the company also compiled the Asian Music Chart Top 40, alongside BritAsia TV. The chart highlights UK's biggest Asian songs of the week, based on sales and streams across a seven-day period. In 2022, the success of Kate Bush's "Running Up That Hill" after its use in the fourth season of the Netflix series Stranger Things brought a challenge against the rules introduced in 2017. The rules were intended to prevent streaming of older songs potentially keeping them on the chart for years. This meant that Bush's song, which had been a Top 3 hit 37 years before, would have to obtain twice the streamings of Harry Styles' song "As It Was" to earn the same 'sales', despite easily being the most streamed and most downloaded song. The OCC granted a 'manual reset' in order to reflect the success of the revival of Bush's hit. As well as genre-specific and music video charts, the OCC tracks purchases (DVDs/blu-rays) and downloads of television programmes, films and sports/fitness videos from a range of retailers and online sites. The Chart Supervisory Committee As the OCC is jointly operated by the BPI and the ERA, a Chart Supervisory Committee is in place with panel of representatives from both the record industry and from retailers. Five