Situation
Manufacture and trade of construction products continue to face a complex global market place, affected by multiple regulatory systems, international and national standards and certification requirements.

Difinition：
"construction product" means any product which is produced for incorporation in a permanent manner in construction works, including both buildings and civil engineering works.

Essential Requirement ：
The products must be suitable for construction works which (as a whole and in their separate parts) are fit for their intended use, account being taken of economy, and in this connection satisfy the following essential requirements where the works are subject to regulations containing such requirements. Such requirements must, subject to normal maintenance, be satisfied for an economically reasonable working life. The requirements generally concern actions which are foreseeable.

1．Mechanical resistance and stability
    2．Safety in case of fire   
    3．Hygiene, health and the environment   
    4．Safety in use
    5．Protection against noise      
    6．Energy economy and heat retention

System of Conformity Attestation of Construction Products：
System 1： Approved body does initial type-testing of the product, inspection and surveillance of factory production control (FPC).
System 1+： Approved body does initial type testing of product, inspection and surveillance of FPC, and audit testing of samples.
System 2： Approved body does inspection of FPC
System 2+： Approved body does inspection of FPC and continuous surveillance
System 3： Approved body does initial type-testing
System 4： Manufacture does initial type-testing and issue Declaration of Conformity (DOC)