The VCOC requires, at minimum, that a measurement service seeking to replace an existing accredited currency product in a market submit the replacement product to a rigorous independent audit and that the results of the audit are shared with customers who are members of MRC prior to commercialization of the replacement product.
Arbitron fulfilled the minimum prerequisites of the VCOC prior to the commercialization of Philadelphia on April 27, 2007, prior to the commercialization of Houston on July 18, 2007, prior to the commercialization of New York, Los Angeles, Chicago, San Francisco, Nassau-Suffolk, Riverside-San Bernardino, San Jose and Middlesex-Somerset-Union on October 6, 2008 and prior to the commercialization of Dallas-Ft.