TheUK Rock & Metal Singles Chart andUK Rock & Metal Albums Chart arerecord charts compiled in theUnited Kingdom by theOfficial Charts Company (OCC) to determine the 40 most popular singles and albums in therock andheavy metal genres. The two charts are compiled by the OCC fromdigital downloads, physical record sales andaudio streams in UK retail outlets.[1] The charts have been published on the official OCC website since 1994. Previously, the UK Rock Singles chart, sometimes called the Metal Singles chart, that was compiled byCIN, which later became OCC, was published inHit Music from September 1992 intermittently to February 1997 and interchangeably with the Rock and Metal Albums chart (which was sometimes under the title of Rock and Metal Singles chart) and also with theIndie Chart.[2][3][4]
