These Regulations implement articles 19 to 25 and Annex V of Directive 2004/49/EC of the European Parliament and the Council of 29th April 2004 on the safety of the Community’s railways and amending Council Directive 2001/14/EC on the allocation of railway infrastructure capacity and the levying of charges for the use of railway infrastructure and safety certification, in so far as those articles have not already been implemented by Part 1 of the Railways and Transport Safety Act 2003 (c. 20) (“the 2003 Act”), which establishes the Rail Accident Investigation Branch, (“the Branch”), being a permanent body given power to investigate railway accidents and incidents.