The trade body ADS - which represents more than 1,100 UK businesses in the aerospace, defence, security and space sectors - told the BBC the decision [to leave the EU EASA] could potentially mean products and designs would need to be certified more than once.
For example, EASA is responsible for certifying commercial aircraft for service across the EU and some non-EU European countries.
When the UK ends its membership of EASA, it may need to certify aircraft separately itself.
ADS has estimated that it would take 10 years and cost up to £40m annually to create a UK safety authority with all the expertise of EASA, against a current contribution to the European agency of £1m to £4m a year
For example, EASA is responsible for certifying commercial aircraft for service across the EU and some non-EU European countries.
When the UK ends its membership of EASA, it may need to certify aircraft separately itself.
ADS has estimated that it would take 10 years and cost up to £40m annually to create a UK safety authority with all the expertise of EASA, against a current contribution to the European agency of £1m to £4m a year
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