Please modify the following text with different wording:
The body, its director and the staff responsible for carrying out the verification tests must not be the designer, manufacturer, supplier, installer or importer of pyrotechnic articles which they inspect, nor the authorised representative of any of these parties.
The designing, manufacturer, supplying, using or importing pyrotechnic articles which they are inspecting or the authorized representative of either Party shall not constitute the body, its Director and the verifying agents.