To explain students valid legislation of the Czech Republic in the OSH area – construction sector, especially Act No. 262/2006 Coll., Labour Code, in relation to Act No. 309/2006 Coll. on further requirements for health and safety at work, including duties of coordinators and Building Act No. 183/2006 Coll. Government Regulation No. 591/2006 Coll. on minimum requirements for safety and health at work on building sites and Government Regulation No. 362/2005 Coll. on minimum requirements for safety and health at work at heights, and other related regulations and standards in the area of construction.