This document provides a set of codes for the exchange of dimensional data between truck chassis 
manufacturers and bodywork manufacturers.
The process of exchanging the above information can involve:
— chassis manufacturer;
— chassis importer;
— chassis dealer;
— one or more bodywork manufacturers; and
— bodywork component suppliers, e.g. manufacturers of demountable bodies, cranes and loading 
equipment, tipping equipment.nd edition 2020-09 Road vehicles — Product data exchange between chassis and bodywork manufacturers (BEP) — Part 3: General, mass and administrative exchange parameters Véhicules routiers — échange de données de produit entre les fabricants de chassis et de carrosseries (BEP) — Partie 3: Paramètres d'échange généraux, de masse et administratifs Reference number ISO 21308-3:2020(E) ？ ISO 2020 ISO 21308-3: 標準截圖