(63)Benchmarks can reference financial instruments and financial contracts that have a long duration. In certain cases, such benchmarks risk no longer being permitted to be provided once this Regulation comes into effect because they have characteristics that cannot be adjusted to conform to the requirements of this Regulation. At the same time, prohibiting the continued provision of such a benchmark could result in the termination or frustration of the financial instruments or financial contracts and so harm investors. It is therefore necessary to make provision to allow for the continued provision of such benchmarks for a transitional period.