(8)Moreover, the aforesaid legislation is based on the application of rules resulting from international instruments in force at the date of adoption of the Community act in question, or at the date specified by the latter. As a consequence, Member States cannot apply the subsequent amendments to these international instruments until the Community Directives or Regulations have been amended. This has major disadvantages owing to the difficulty of ensuring that the date of entry into force of the amendment at international level coincides with that of the Regulation integrating this amendment into Community law, not least the delayed application within the Community of the most recent and most stringent international safety standards.