| Glossary Word | | Glossary Description | | |
| NATA - New Approach to Appraisal | | A new appraisal system for schemes submitted within an LTP. |
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| National Cycle Network | | A cycle network being created by Sustrans in partnership with Local Authorities and other public and private bodies. |
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| Nonattainment | | Any area that does not meet (or that contributes to ambient air quality in a nearby area that does not meet) the national primary or secondary ambient air quality standard for the pollutant. |
| |
| NOX | | Oxides of Nitrogen. |
| |
| NATA - New Approach to Appraisal | | A new appraisal system for schemes submitted within an LTP. |
| |
| National Cycle Network | | A cycle network being created by Sustrans in partnership with Local Authorities and other public and private bodies. |
