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Glossary of terms
- ULEZ: Ultra Low Emissions Zone
- HULEZ: Heathrow Ultra Low Emissions Zone
- CoCP: Construction Code of Practice
- DfT: Department for Transport
- TfL: Transport for London
- DCO: Development Consent Order
- PINS: Planning Inspectorate
- Airports NPS: Airports National Policy Statement
- Airports Commission
- CPZ: Compulsory Purchase Zone
- WPOZ: Wider Property Offer Zone
- Category 3 compensation
- NSIP: Nationally Significant Infrastructure Project
- TEAM: Tactically Enhanced Arrivals Mode
- IPA: Independent Parallel Approach
- MPPA: Million passengers per annum
- Northern runway: With expansion, refers to the new third runway to the north-west of the existing runways.
- Middle runway: With expansion, refers to the what is today known as the Northern Runway (27R, 09L)
- Southern Runway: The existing southern runway (27L, 09R)
- DILs: Document Inspection Location