"Over all, it may take another one to two years before the new facility becomes operational," the organization said in a statement.
It said on its website: "The permit will ensure that a high level of protection will be provided to human health and the environment when the facility becomes operational".
Located beneath the Treasury building in the Whitehall area of Westminster, the facilities became operational in 1939 and were in constant use until their abandonment in August 1945 after the surrender of Japan.
No dose response of solid cancer mortality was observed when the 27 926 workers from the three NPP companies were combined (Table 5), whether first monitored in the early years when facilities became operational (1960 for OH, 1971 for HQ and 1982 for NB) or later.
"However, with a recycling target of 50% by 2020 and a decline in waste arising, if the large number of planned [incineration] facilities become operational, there is a real risk of us building excess thermal treatment capacity, something we already see in various northern European countries.
The incident happened on June 7, six days after the €600 million facility became fully operational.
Countries in the South Caucasus and beyond worry about a failure of the current nuclear facility at Metsamor, which became operational in 1976.
"The total cost of acquiring all new players during that year amounted to £33.4m, while an additional £6.9m was spent on new training facilities at Fairwood which became operational in February 2014.
Its major facilities include a reactor that became operational in 1986, a reprocessing plant, and a fuel fabrication plant.
The core technology proposed has already been fully demonstrated, and no new plasma physics or materials innovations will be required for the test facility to become operational.
