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UK Civil Aviation Regulations

These are published by the CAA on our UK Regulations pages. EU Regulations and EASA Access Guides published by EASA no longer apply in the UK. Our website and publications are being reviewed to update all references. Any references to EU law and EASA Access guides should be disregarded and where applicable the equivalent UK versions referred to instead.

The Civil Aviation Authority (Air Navigation) Directions 2017 include one criterion relevant to noise modelling, namely that the proposed change:

could both lead to a change in noise distribution resulting in a 10,000 net increase in the number of people subjected to a noise level of at least 54dB LAeq,16h and have an identified adverse impact on health and quality of life.

This policy clarifies how the CAA will interpret this criterion for the purpose of providing the advice required to the Secretary of State.

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