det er noedvendigt at kontrollere overholdelsen af disse tekniske forskrifter for at beskytte brugere og tredjemaend effektivt; de nuvaerende kontrolprocedurer er ikke de samme i de forskellige medlemsstater; for at undgaa flerdobbelt kontrol, der samtidig er til hinder for disse beholderes fri bevaegelighed, boer medlemsstaterne anerkende hinandens kontrol; for at lette denne gensidige kontrol-anerkendelse boer der bl.a. fastsaettes harmoniserede faellesskabs-procedurer og foretages en harmonisering af de kriterier, som benyttes, naar der skal udpeges organer til at tage sig af undersoegelser, overvaagning og kontrol;
Whereas a check on compliance with the relevant technical requirements is necessary to provide effective protection for users and third parties; whereas the existing inspection procedures differ from one Member State to another; whereas, in order to avoid multiple inspections, which are in effect barriers to the free movement of vessels, arrangements should be made for the mutual recognition of inspection procedures by the Member States; whereas, in order to facilitate the mutual recognition of inspection procedures, harmonized Community procedures should be set up and the criteria for appointing the bodies responsible for carrying out tests, surveillance and verification should be harmonized;