currently in its 3rd iteration with Miljöbyggnad 3.1 released in April 2020. Miljöbyggnad has three levels of certification: Bronze, Silver and Gold. It is used to certify both new and existing constructions. It assesses 3 categories, namely: Energy consumption Indoor environment Materials and chemicals. Among these categories, there are 15 further sub-categories which have its own set of requirements for each certification levels. For example, for the "Energy use" sub-category, Bronze level requires energy use to be less than 65% of the requirements of the BBR, the Swedish Building Code. After 3 years, another follow-up inspection is conducted to see that everything is in the correct order and the standards are still being met. Besides Miljöbyggnad, the Sweden Green Building Council also administers the Swedish version of the British BREEAM adapted for the Swedish construction practices and standards, called BREEAM-SE. It was first introduced in Sweden in 2013 and is used to certify new constructions. United Kingdom The Building Research Establishment Environmental Assessment Method (BREEAM) is recognized as the first Sustainability Assessment Method for buildings. It was launched in 1990 by the UK-based organization Building Research Establishment (BRE). BREEAM certification is carried out on the basis of a scoring system where projects are assessed on the basis of 10 categories (with individual weightings differing by project type) as follows: Management Health and well-being Hazards Energy Transport Water Materials Waste Land use and ecology Pollution Surface water run-off Each category is sub-divided into a range of assessment indicators, each having its own aim, target and benchmarks. When a target or benchmark is reached, the asset is given credits (or points) by a qualified BREEAM assessor. The category score is calculated according to the number of credits attained and the category weightings. Once the development has been fully assessed, the final performance rating is determined by the sum of the weighted category scores. The final performance rating is specified as: A qualified assessor evaluates a building or project and ensures that it meets the quality and performance standards of the selected scheme. In some countries such as Netherlands, Germany and Sweden, there are national operators that officially certify for BREEAM adapted to that country's standards, processes and construction methods. BREEAM certification has also been made mandatory for governmental construction projects in the UK. According to the Common Minimum Standards for governmental construction, an environmental assessment is required on all public projects and