Taiwan Transportation Safety Board

The Taiwan Transportation Safety Board (TTSB, ) is an independent government agency of the Republic of China responsible for major transportation accidents on aviation, railways, waterways, and highways in Taiwan. The council is headquartered in Xindian District, New Taipei. Its headquarters were previously in Songshan District, Taipei.

History
The Aviation Safety Committee, later renamed Aviation Safety Council, was established on 25 May 1998 as an independent agency. It was put under the administration of Executive Yuan in May 2001 until 20 May 2012 after which it became an independent body again. On 1 August 2019, the agency was to be renamed "National Transportation Safety Council". Its portfolio expanded to cover major highway and railway incidents alongside aviation safety, and this was done in a response to a perceived shortcoming in the initial ad hoc investigation of the 2018 Yilan train derailment. The English name ultimately chosen was "Taiwan Transportation Safety Board".

Departmental structure
The agency is grouped into the following structure:

Investigation Lab

 * Site Survey
 * Flight Recorders Readout
 * Performance Analysis
 * Data Integration & Simulation
 * Engineering Research & Development

Flight Safety Division

 * TACARE Systems
 * Safety Improvement Research Projects
 * Promotion & Public Affairs
 * Safety Recommendations Implementation
 * flight Safety Database

Occurrence Investigation Division

 * Response to Occurrence Notification
 * Occurrence Investigation
 * Safety Recommendations
 * Investigation Techniques Research & Development
 * Coordination with International Air Safety Organizations

Legal and Administration Division

 * Legal Affairs
 * General Affairs
 * Account Receivable
 * Documentation
 * Transportation
 * Library

List of leaders

 * Aviation Safety Committee
 * Weng Cheng-yi (25 May 1998 – 19 May 2000)
 * Wang Shih-sheng (acting; 20 May 2000 – 23 August 2000)
 * Liu Wei-chi (24 August 2000 – 22 May 2001)
 * Aviation Safety Council, Executive Yuan
 * Liu Wei-chi (23 May 2001 – 23 May 2003)
 * Kay Yong (24 May 2003 – 30 March 2005)
 * Weng Cheng-yi (acting; 1 April 2005 – 11 August 2005)
 * Wu Jing-shown (12 August 2005 – 24 August 2010)
 * Chang Yu-hern (25 August 2010 – 19 May 2012)
 * Aviation Safety Council
 * Chang Yu-hern (20 May 2012 – 31 July 2015)
 * Shen Chi (19 August 2015 – 22 October 2015)
 * Liu Pei-ling (acting; 23 October 2015 – 28 December 2015)
 * Hwung Hwung-hweng (29 December 2015 – 27 April 2018)
 * Young Hong-tsu (4 July 2018 – 31 July 2019)
 * Taiwan Transportation Safety Board
 * Young Hong-tsu (1 August 2019 – 11 February 2023)
 * Lin Shinn-Der (31 May 2023 - )

Transportation
ASC headquarters is accessible within walking distance North of Dapinglin Station of the Taipei Metro.