| RO-2010-010 | Derailment of freight train 5MP5 near Keith SA on 8 October 2010 | 08 Oct 2010 | Final | 28 Sep 2011 |
| RO-2011-002 | Collision between suburban passenger trains G231 and 215A in Adelaide Yard, SA, 24 February 2011 | 24 Feb 2011 | Final | 11 Oct 2011 |
| RO-2010-011 | Derailment of Train 3PW4 at Wodonga, Victoria on 23 October 2010 | 23 Oct 2010 | Final | 19 Oct 2011 |
| RI-2010-014 | Investigation into the procedures and practices used to provide access to track, NSW | | Discontinued | 21 Nov 2011 |
| RO-2011-011 | Collision between freight train 3SP7 and road-rail vehicle near Menindee, NSW on 13 July 2011 | 13 Jul 2011 | Final | 22 Nov 2011 |
| RO-2011-007 | Parting of train 9827 near Gunning, NSW on 30 March 2011 | 30 Mar 2011 | Final | 23 Nov 2011 |
| RO-2010-012 | Derailment of freight train 4DA2 near Cadney Park, South Australia, 25 November 2010 | 25 Nov 2010 | Final | 20 Dec 2011 |
| RO-2010-013 | Collision of grain train 3234 with grain train 8922 at Yass Junction, NSW on 9 December 2010 | 09 Dec 2010 | Final | 30 Jan 2012 |
| RI-2011-015 | Investigation of rail operations on the interstate rail line between Melbourne and Sydney | 16 Aug 2011 | Interim Factual | 08 Feb 2012 |
| RO-2012-002 | Derailment of freight train 7SP3 near Roto NSW on 3 March 2012 | 04 Mar 2012 | Pending | N/A |
| RO-2011-017 | Derailment of 7SP5 between Caragabal and Wirrinya, NSW, 23 October 2011 | 23 Oct 2011 | Preliminary | 19 Mar 2012 |
| RO-2011-006 | Collision between freight train 7SP3 and a track mounted excavator near Jaurdi, WA, 28 March 2011 | 28 Mar 2011 | Final | 04 Apr 2012 |
| RO-2010-004 | Collision between XPT passenger train WT27 and a track-mounted excavator near Newbridge, New South Wales on 5 May 2010 | 05 May 2010 | Final | 20 Apr 2012 |
| RO-2012-007 | Level crossing collision between a road vehicle and train 3WP3 at Werribee, Vic, on 25 May 2012 | 25 May 2012 | Pending | N/A |
| RO-2011-001 | Signal passed at danger by XPT ST24 at Henty, NSW on 5 February 2011 | 05 Feb 2011 | Final | 26 Jun 2012 |
| RO-2010-015 | Derailment of train 1MP5 at Goddards, WA, 28 December 2010 | 28 Dec 2010 | Final | 29 Jun 2012 |
| RO-2012-006 | Collision between two road/rail vehicles at Haig, WA on 24 May 2012 | 24 May 2012 | Preliminary | 27 Jul 2012 |
| RO-2012-008 | Train parting near Seymour, Victoria on 1 August 2012 | 01 Aug 2012 | Discontinued | N/A |
| RO-2012-004 | Derailment of Ballast Train 8M24N near Broken Hill, NSW, 11 April 2012 | 11 Apr 2012 | Final | 07 Aug 2012 |
| RO-2012-009 | Train 2AD1 overrun of authority at Tarcoola SA, 21 August 2012 | 21 Aug 2012 | Pending | N/A |