Legal and administrative. Building control -- The Building Regulations and Approved Documents -- Local authority control -- Private certification -- Work under the supervision of a competent person -- Technical. Structural stability (Part A) -- Part 7 -- Fire (Part B) -- Materials, workmanship, site preparation and moisture exclusion (Part C) -- Toxic substances (Part D) -- Sound insulation (Part E) -- Ventilation (Part F) -- Sanitation, hot water safety and water efficiency (Part G) -- Drainage and waste disposal (Part H) -- Combustion appliances and fuel storage systems (Part J) -- Protection from falling, collision and impact (Part K) / KT Bright -- Conservation of fuel and power (Part L) -- Access to and use of buildings (Part M) / KT Bright -- Electrical safety (Part P) -- Security (Part Q).