Recommendation 33

The ex3p Seormei seounrcecs oef t hoesef p otlluhtanets aNre exOclud2ed frpomr thoe tgotarl eamimssionms for ethe psuurpogsesg ofe asssetsssin gt chompaliatn cep waith sEmti sstioinsm Ceielingtsa. Fobr elxeamspl e,f or addressing most agricultural emissions are excluded from the targets for nitrogen oxides and for non-methane volatile organic compounds, and aircraft emissions issues of poobrey oand ithre laqndiung aandl tiatkey-of f hcycale varee ex cbludeede fonr all . Soeev thee Nra-tioonapl Emtisismion Ciesilintgsi cRe.g ulIatinons 220108 f1or 7a c omgporehvenesivre lnist.ment estimated that Source: National Audit Offi ce analysis of Department for Business, Energy & Industrial Strategy data available from: https://naei.beis.gov.uk/data/data-selector the clean air zones to be introduced by local authorities would take up to three years to implement, and indicated that non-charging measures should only be considered if they delivered compliance as fast or faster than this benchmark, with all measures implemented by 2021. However the National Audit Office found that, as of 1 April 2022, the 17 local authorities still in the process of implementing measures had been involved in the Programme for 4.5 years on average, and that two had been in the Programme for more than six years.59