1. Purpose 1. 1 The purpose of this procedure is to specify the written schedule control criteria required by the quality management system, so as to ensure that the valid version of the document can be obtained when necessary and prevent misuse (such as invalid use).

2. Scope of application 2. 1 Applicable to the control of written information required by the company's quality, environment and occupational health and safety management system. It is applicable to the control of written information specified in CCC.