Columbia, MD - Apr 20, 2011 - The Media Rating Council (MRC) has granted accreditation to Arbitron's Tapscan Web. According to Arbitron, Tapscan Web is used by more than 19,000 radio sales professionals and facilitates half a million proposals to radio buyers per year.

Reports created in Tapscan Web using MRC accredited data from Arbitron's 234 diary and 14 accredited Arbitron Portable People Meter (PPM) markets will now carry the double checkmark symbol indicating that the system is accredited by the MRC. However, sales proposals created using data from the remaining 34 unaccredited PPM markets will not carry the double checkmark. The MRC has accredited the monthly average-quarter-hour radio ratings data produced by the PPM service in Atlanta; Cincinnati; Cleveland; Kansas City; Milwaukee-Racine; Philadelphia; Phoenix; Portland, OR; Salt Lake City-Ogden-Provo; St. Louis; Tampa-St. Petersburg-Clearwater; Houston-Galveston; Minneapolis-St. Paul and Riverside-San Bernardino.