The Building Research Establishment (BRE) is a centre of building science in the United Kingdom, owned by charitable organisation the BRE Trust. It is a former UK government national laboratory that was privatised in 1997. BRE provides research, advice, training, testing, certification and standards for both public and private sector organisations in the UK and abroad. It has its headquarters in Garston, Hertfordshire, England, with regional sites in Glasgow, Swansea, the US, India, the Middle East and China.