| England & Wales | Scotland | Northern Ireland |
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A - Structure
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1 - Structure
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D - Structure
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B - Fire safety
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2 - Fire
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E - Fire safety
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C - Site preparation and resistance to contaminants and moisture
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3 - Environment
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C - Site preparation and resistance to moisture
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D - Toxic substances
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3 - Environment
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E - Resistance to passage of sound
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5 - Noise
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G - Sound
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F - Ventilation
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3 - Environment
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K - Ventilation
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G - Hygiene
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3 - Environment
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H - Drainage and waste disposal
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3 - Environment
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N - Drainage
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J - Combustion appliances and fuel storage systems
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3 - Environment
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L - Combustion appliances and fuel storage systems
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K - Protection from falling, collision and impact
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4 - Safety
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H - Stairs, ramps, guarding and protection from impact
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L - Conservation of fuel and power
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6 - Energy
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F - Conservation of fuel and power
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M - Access to and use of buildings
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4 - Safety & 3 - Environment
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R - Access to and use of buildings
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N - Glazing - safety in relation to impact, opening and cleaning
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4 - Safety
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V - Glazing
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P - Electrical safety - dwellings
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4 - Safety
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P - Unvented hot water storage systems
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Overall Building Regulation system, E&W
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Overall Building Regulation system, Scotland
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Overall Building Regulation system, N. Ireland
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