Article 8 2.

An administrator shall keep the records set out in paragraph 1 for at least five years in such a form that it is possible to replicate and fully understand the determination of a benchmark and enable an audit or evaluation of input data, calculations, judgements and discretion. Records of telephone conversation or electronic communications recorded in accordance with point (h) of paragraph 1 shall be provided to the persons involved in the conversation or communication upon request and shall be kept for a period of three years.