Antony Froggatt: Maximum liability is £140m in the UK, but Fukushima clean-up and compensation costs are running to tens of billions – and the state is footing the bill. 27 years after Chernobyl and two years after Fukushima, the proposed changes to the liability regimes are still to be adopted by the signatories of the international conventions. Consequently, in the UK, the current maximum that a nuclear operator is liable is still only £140m. The government is seeking to revise the maximum limit, but is waiting on the post-Chernobyl revisions to be adopted by other countries. If it is introduced, it will raised the operator’s liability ultimately to £1bn. As of October 2012, approximately £9.4bn (1,335 bn yen) had been paid out in compensation as a result of the Fukushima accident and this is expected to double in the next year. At this stage the final cost can only be roughly estimated, but the utility company, Tepco, has suggested that cost for compensation and decontamination maybe in the order of £70bn (10 trillion yen).