SCHEDULE 4 CONFORMITY ASSESSMENT PROCEDURES
(This Schedule substantially reproduces the provisions of Part 1 of Annex IV of the Transportable Pressure Equipment Directive.)

2 Module E1—production quality assurance
The manufacturer must draw up the technical documentation described below.
The technical documentation must enable an assessment to be made of the conformity of the transportable pressure equipment with the relevant requirements of Part IV of these Regulations. It must, as far as is relevant for such assessment, cover the design, manufacture and operation of the transportable pressure equipment and contain:
a general description of the equipment in question,
conceptual design and manufacturing drawings and diagrams of components, sub-assemblies, circuits, etc.,
descriptions and explanations necessary for an understanding of the said drawings and diagrams and the operation of the equipment,
a description of the solutions adopted to meet the requirements of Part IV of these Regulations,
results of the design calculations made, examinations carried out, etc.,
test reports.