【正文】 llance on schedule, otherwise it’ll be regarded as rejection to the followup surveillance. The frequency of followup surveillanceThe followup surveillance shall normally be implemented 12 months after the first certificate being granted with a frequency of once per 12 months.The frequency of surveillance should be increased in any of the following cases:1) If serious quality problem arises with the certified product, or the certified product is plained by clients, which has been verified to be the responsibility of the certificate holder and/or the factory.2) The certification body doubts the conformity of the certified product against the requirements of safety and EMC standards with sufficient reasons. 3) Sufficient information indicates that the conformity or the consistency of certified products might be affected due to the changes in organization structure, production condition and the quality system of the manufacturer and/or factories. Contents of followup surveillanceThe followup surveillance includes: reassessment of factory quality assurance ability + checking of consistency of certified products, and if necessary, samples may be taken and tested at the testing laboratory, refer to clause ..The certification body shall implement the factory reassessment in accordance with Requirements for Factory Quality Assurance Ability (see Appendix V). The items 3, 4, 5 and 9 specified in Requirements for Factory Quality Assurance Ability must be assessed for each followup surveillance and the rest items may be selected. All the items of the Requirements shall be covered at least every four years. The contents of consistency checking for certificated product are identical with those of the initial factory inspection basically.At the same time, the checking shall be conducted according to “Testing requirements of factory quality control of pulsory certification of Telemunication Terminal Equipment” (see Appendix IV), together with checking use of “CCC” mark and certificates. Timing of the followup surveillanceThe duration of the followup surveillance shall be determined by the amounts of units of certified products with appropriate consideration of the production scale of the factory. It will normally take about 1 to 2 working days/p. Conclusions of the followup surveillanceThe inspection team submits the conclusion of the followup inspection to the certification body. When the followup inspection conclusion is unqualified, the inspection team submits directly to the certification body. The factory should take correction action within 40 working days when nonconformity item exists. The certification body will verify the validity of the correction action with appropriate methods. The conclusions of followup inspection will be unqualified when the correction action is unpleted within the time limit. Sampling amp。Have the same key assemble and producing process concerning safety performance。E” (as below) shall be used for certification involving both safety and EMC: Use of derivations of certification mark The products listed in this Rules shall not be allowed to use any derivations of certification mark. Ways of use Any of the following three ways is required: affixing standardsize marks (labels) printed uniformly by CNCA, printing on the nameplate or molding. Location of the markThe certification mark shall be applied on an exposed location on the outer body of the product.7. ChargeThe certification shall be charged by the certification body according to the national statutory structural fee chart.30 / 30Appendix I List of the Definition of application unit of Audio amp。2) List of critical ponents and/or materials。Ref. No. CNCA—01C—017：2007IMPLEMENTATION RULES FOR COMPULSORY CERTIFICATION OF ELECTRICAL AND ELECTRONIC PRODUCTS Audio amp。 and also including the accessories such as tubes (greater than 16cm), tuners. 2. Certification modelType testing + initial inspection of the factory + Followup surveillance3. Major processes for certification Application for certification Type testing Initial inspection of the factory Evaluation and approval of certification results Followup surveillance4 Implementation of certification Application for Certification Defining the application unit for certificationIn principle, application for certification is made according to model/type of products.The products, of the same manufacturer, of the same model/type, but from different factories, shall be divided into different application units, however, only one type testing is required to carry out on samples from the factory. The sample and related documents should be provided by other factories to the certification body for consistence checking when necessary.Products defined in one application unit should have identical critical ponents related to electrical structure, safety and significant influence on EMC performance (see the ponents with * in Appendix III). The concrete model/type of product in one application unit should be clearly indicated in principle. The explanation of application units shall be defined in details according to Appendix I..For the bination or multifunction appliances, if the separate units could be powered with AC mains and sold independently, they should be applied separately. Application documentsThe formal application shall be submitted with the following documents:1) Circuit diagram related to safety and EMC test (such as the circuit diagram of power supply unit) and/or the appliance’s system block/ installation configuration diagram, etc.。 testing after certified If necessary, the certified products should be sampled and tested. The samples shall be taken randomly from the qualified products of the factory (including those from the product line, the stock, and the market/sal