BREEAM is the world's longest established method for assessing the sustainability of buildings. It was first published in 1990 by the Building Research Establishment (BRE) in the UK. BREEAM provides independent third-party certification that evaluates a building's sustainability performance. It has certified over 250,000 buildings in more than 50 countries worldwide. BREEAM ratings range from Acceptable to Outstanding based on a building's performance across categories like energy, health, materials and waste. The scheme has expanded over time to assess new buildings, existing buildings, refurbishments and large developments throughout a building's entire lifecycle. BREEAM is used in over 70 countries, with some European nations operating their own country-specific versions.