In addition, the report found that one in four local authorities is failing to monitor the number of childcare places available in their region - despite being required to do so every year by law.
"We have sought guidance and are reliably informed that in Islamic Law, children are not required to fast during Ramadan, only being required to do so when they become adults," the letter from the Leyton school said.
Furthermore, the NAO found that despite the higher initial funding, just 14% of LLFAs had managed to publish their flood risk strategies since being required to do so in 2011.
The court also criticised the home secretary for failing to issue statutory guidance on the support that should be provided to victims of trafficking and slavery, despite being required to do so by the 2015 Modern Slavery Act.
A number of London's Labour politicians have been urging housing associations (HAs) to reject a proposed deal worked up between the National Housing Federation (NHF), which represents HAs, and the government under which they would voluntarily give their tenants the right to buy their homes instead of being required to do so by law.
"The Environment Secretary must ensure that, in each of the 45 areas, steps are taken to achieve compliance as soon as possible, by the quickest route possible and by a means that makes that outcome likely". He added: "In effect, these local authorities are being urged and encouraged to come up with proposals to improve air quality over the next three years, but are not being required to do so.
