This Part of EN 13244 gives guidance for the assessment of conformity to be included in the manufacturer’s quality plan as part of his quality system. This Technical Specification includes: a) requirements for materials, components, joints and assemblies given in Parts 1 to 5 of EN 13244; b) requirements for the manufacturer's quality system; NOTE 1 It is recommended that the quality system conforms to EN ISO 9001 [1] c) definitions and procedures to be applied if third party certification is involved. NOTE 2 If third party certification is involved, it is recommended that the certification body is accredited to EN 45011 [2] or EN 45012 [3] , as applicable. In conjunction with one or more Parts of EN 13244 (see Foreword) it is applicable to polyethylene (PE) piping systems intended to be used for buried and above-ground pressure systems for water for general purposes, drainage and sewerage.