A standard widely used in the European Community is the Third Edition of the International Special Committee on Radio Interference (CISPR), Pub. 22, “Information Technology Equipment—Radio Disturbance Characteristics—Limits and Methods of Measurement,” issued in 1997. This standard is better known as simply CISPR 22. Unlike the FCC which regulates electromagnetic interference in the United States, CISPR is a standards organization without regulatory authority. However, CISPR standards have been adopted for use by most members of the European Community. CISPR 22 also differentiates between Class A and Class B devices and establishes conducted and radiated emissions for each class. In addition, CISPR 22 requires certification over the frequency range of 0.15MHz to 30MHz for conducted emissions (Recall that the FCC range starts at 0.45MHz).