FCC (Federal Communications Commission Federal Communications Commission) for Audio / Video Products, IT (IT) products, PC or PC peripheral products, industrial science and medical equipment, microwave ovens, energy-saving lamp, ballast and communications products, low-power radio frequency products Such as the United States to be sold to obtain FCC certification. 

The different products were certified in three different modes, namely: Verification, Declaration of Conformity (DOC), Certification. Certification of the different models, require testing laboratories to obtain FCC approval and have different applications, as well as the stated requirements of the test. 
Verification is the manufacturers themselves must take steps to ensure that products meet the technical standards. 
Declaration of Conformity by the responsible party must take steps to ensure that products meet the technical standards. 
Certification is based on the FCC to apply and test data and approved the signing of equipment. 

FCC15.101 (certification level classification) 

TV broadcast receiver .................. Verification. 
FM broadcast receiver .................. Verification. 
CB receiver ............................ DOC or Certification. 
Superregenerative receiver ............. DOC or Certification. 
Scanning receiver ...................... Certification. 
Radar detector ......................... Certification. 
All other receivers subject to part 15. DOC or Certification. 
TV interface device .................... DOC or Certification. 
Cable system terminal device ........... Declaration of Conformity. 
Stand-alone cable input selector switch .... Verification. 
Class B personal computers and .... DOC or Certification. 
  peripherals. 
CPU boards and internal power supplies .... DOC or Certification. 
  used with Class B personal computers. 
Class B personal computers assembled .... Declaration of Conformity. 
  using authorized CPU boards or power 
  supplies. 
Class B external switching power .... Verification. 
  supplies. 
Other Class B digital devices and .... Verification. 
  peripherals. 
Class A digital devices, peripherals .... Verification. 
  and external switching power supplies. 
All other devices ...................... Verification.