amendments of the legal texts are regularly suggested by the Member States to improve the texts (cf.  for instance). This paper approaches two ambiguous points of the regulation (TS-R-1 ):
- The need of a better specification of the configurations to be analyzed in the criticality studies for packages transported by air when the applicant does not realize the required test sequences;
- The pertinence of the conditions imposed for the assessment of a 5N array of package under normal conditions of transport (absence of moderation between packages even if rain, fog or snow are usually considered as normal conditions).