Further to its September 1994 session, the Committee of the Regions has published its opinion on the proposal for a Council Directive concerning the interoperability of the European high-speed train network. Although the Committee acknowledged that it would be unrealistic to impose universal interoperability (owing to the lack of conformity of equipment) it nonetheless welcomed the Commission's proposed draft Decision concerning interoperability. The Committee pointed out that the text proposed by the Commission divided the European railway network into eight sub-systems but that there is no provision to ensure overall coherence of the system, which would be desirable for reasons of safety, efficiency and economy. Among other points in this opinion, the Committee drew attention to the precise arrangements proposed by the Commission concerning infrastructure, energy and maintenance, and the lack of precision of the proposed standardization concerning safety guidelines, environment and operation. In conclusion the Committee considered the proposed timescale laid down in this draft Directive for implementation of interoperability to be unrealistic, whilst at the same time acknowledged the need to avoid delay.