Commission for Railway Regulation

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The Commission for Railway Regulation (CRR) ({{langx|ga| An Coimisiún um Rialáil Iarnróid}}, CRI), formerly the Railway Safety Commission (RSC) ({{langx|ga|Coimisiún Sábháilteachta Iarnróid}}, CSI) is the regulator for Irish rail networks. It is an agency of the Republic of Ireland government, and its head office is in Temple House in Blackrock."[http://www.rsc.ie/contact/ Address & Location Map]."{{dead link|date=May 2025}} ([https://web.archive.org/web/20120305101050/http://www.rsc.ie/contact/ Archive]) Railway Safety Commission. Retrieved on 16 February 2012. "Trident House, Blackrock, County Dublin, Ireland."

The agency was established on 1 January 2006 as part of the Railway Safety Act 2005."[http://www.rsc.ie/about/ About us]."{{dead link|date=May 2025}} ([https://web.archive.org/web/20120305100510/http://www.rsc.ie/about/ Archive]) Railway Safety Commission. Retrieved on 16 February 2012.

The Railway Accident Investigation Unit (RAIU), a functionally independent unit of the CRR, investigates accidents and incidents on Irish railways."[http://www.raiu.ie/about/ About Us]." ([https://web.archive.org/web/20120305100502/http://www.raiu.ie/about/ Archive]) Railway Accident Investigation Unit. Retrieved on 16 February 2012.

The RSC became the Commission for Railway Regulation (CRR) on 29 February 2016 following its designation as a regulatory body under EU law.