1. March 14, 2002 (revised 2/13/2002) 1 Version of CISPR 22 used in the United States by the FCC William S. Hurst Office of Engineering and Technology Federal Communications Commission

2. March 14, 2002 (revised 2/13/2002) 2 Radiated Emissions Section 15.109(g) “Digital devices may be shown to comply with the standards contained in the Third Edition of CISPR Pub 22 (1997), “Information Technology Equipment – Radio Disturbance Characteristics – Limits and Methods of Measurement”

3. March 14, 2002 (revised 2/13/2002) 3 Radiated Emissions Test Procedure C63.4-1992 or 2000* FCC Limits above 1 GHz apply continue to apply to digital devices If the CISPR limits are used for radiated emissions then the CISPR limits for conducted emissions also apply.

4. March 14, 2002 (revised 2/13/2002) 4 Conducted Emissions Section 15.107(e) “Digital devices may be shown to comply with the standards contained in the Third Edition of CISPR Pub 22 (1997), “Information Technology Equipment – Radio Disturbance Characteristics – Limits and Methods of Measurement”

5. March 14, 2002 (revised 2/13/2002) 5 Conducted Emissions Test Procedure C63.4-1992 or 2000* If the CISPR limits are used for conducted emissions then the CISPR limits for radiated emissions also apply. Docket 98-80 is considering a proposal to harmonize the FCC limits for conducted emissions with the CISPR 22 conducted emission limits.

6. March 14, 2002 (revised 2/13/2002) 6 Verification (Self-approval) Verification (Self-approval) Certification (Approved by FCC or TCB) Certification (Approved by FCC or TCB) Declaration of Conformity (Self-approval using an accredited lab) Declaration of Conformity (Self-approval using an accredited lab) Equipment Authorization Program The type of approval is specified in the rules for the particular type of device Minimum Maximum

7. March 14, 2002 (revised 2/13/2002) 7 Conformity Assessment for Digital Devices Option to use either Declaration of Conformity or Certification by a TCB for these devices: Class B personal computers and peripherals CPU boards and internal power supplies used with Class B personal computers:

8. March 14, 2002 (revised 2/13/2002) 8 Conformity Assessment for Digital Devices Only Declaration of Conformity is used for these devices: Class B personal computers assembled using authorized CPU boards or power supplies.

9. March 14, 2002 (revised 2/13/2002) 9 Conformity Assessment for Digital Devices Verification is used for these devices: (15.101) Class B external switching power supplies Other Class B digital devices and peripherals Class A digital devices, peripherals and external switching power supplies