On the 27th of August 2009, Polish Construction Law was amended again to change regulations concerning energy certification of buildings. The changed Law broadens the group of experts entitled to elaborate energy performance certificates for buildings. The group now includes all members of the Polish Chamber of Civil Engineers and the National Chamber of Architects, regardless of their education (M.S. or M.Arch. degree is not required) and professional qualifications (for designing and supervising construction works). There are now approximately 150 000 persons entitled to elaborate energy performance certificates for buildings. Of all the persons entitled to elaborate EP certificates, only the owner of the building is not allowed to issue the certificate for his/her building (even if he/she possesses the qualifications).