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