From July 1978 to September 1986, charts were derived essentially the same way, however, they were published monthly. In 1983, MusicLine was launched publishing their charts monthly. On September 30, 1986 MusicLine charts became bi-weekly and was renamed The MusicLine Update. It published Christian Album charts as well as four radio charts: CHR (Christian Hit Radio)/Pop, AC (Adult Contemporary), Inspirational/Praise and Rock. While the magazine focused on the contemporary Christian music industry-related content that was previously included in CCM Magazine, CCM Magazine retained the consumer-related content. In 1988, The MusicLine Update was renamed The CCM Update. On June 15, 1992, The CCM Update began publishing their charts weekly. In 1999, Salem Media Group acquires CCM Magazine and then on April 15, 2002, Salem closed The CCM Update. At that point, CCM turned over its data and charts to Radio & Records, which continued to publish weekly charts until July 2006.http://www.meiea.org/resources/Proceedings/2018/MEIEA%20Summit%202018%20Mall.pdf Billboard magazine has since taken over the Christian charts with their Christian Airplay, Hot Christian Songs and Christian AC Airplay.
