Members of the go-team and investigation task force shall carry an identification card issued by the TTSB for an investigator when entering such restricted areas as the scene of the occurrence, wreckage search areas, wreckage storage area, reconstruction area, investigation command center, airport and so forth

After a major aviation occurrence arises, the owner of the aircraft, the operator of the aircraft, local government where the occurrence occurred, the operator of the airport, the CAA, TIPC, MPB, coast guard authority or Ministry of National Defense shall in addition to assist the investigation matters designated by the investigation task force, also render assistance ex officio in respect of the following matters:
1. Collect information regarding casualties;
2. Collect information regarding the damage to the aircraft;
3. Collect information regarding the site of the occurrence;
4. Conduct alcoholic and drug tests on the flight crew;
5. Locate the flight data recorder and the cockpit voice recorder;
6. Keep contact information of the flight crew and on-site eyewitnesses and taking down their statements; and
7. Transport, make aerial reconnaissance and provide information of military and civil dual-purpose airports.

After a major aviation occurrence arises, the local government, the operator of the airport, the CAA, TIPC, MPB or the coast guard authority where the occurrence occurred shall provide spaces for the operations of the command center of the investigation, temporary wreckage storage, as well as communications and office equipments.
The TTSB may request local government and police departments to enforce necessary security maintenance and precautionary measures in the area where the occurrence occurred so as to prevent hazards to the safety of the general public caused by the wreckage of the aircraft or the dangerous goods on board as well as to avoid man-made destruction of the scene.

Pursuant to the second paragraph of Article 12 of the Act, the operator of the aircraft shall use its best efforts to require the personnel at the occurrence site to turn off the power source of the cockpit voice recorder after the aircraft touches down and shuts down its engines. The supervisor concerned shall promptly confirm the power cutoff.

In the course of the investigation, the Ministry of the Interior, Ministry of National Defense, and Ministry of Transportation and Communications, coast guard authorities, local governments or any other civilian enterprises deemed appropriate and entrusted by the TTSB may, as requested by the investigation task force, take such measures as aerial surveillance or photography, and notify the TTSB promptly of any information so collected.

After a major aviation occurrence arises, the investigation task force may request the Ministry of Economic Affairs to further direct the utilities concerned to furnish the layouts of public gas and fuel lines, diagrams of power transmission lines, markings information and any other necessary data and charts so as to prevent a derivative hazards.

If any of the following situations is likely to occur, the Investigator-In-Charge may consent to necessary clearance of the scene of the major aviation occurrence pursuant to Article 13 of the Act:
1. Derivative damage of the wreckage;
2. Derivative hazards;
3. Injury to the general public;
4. Environmental pollution; or
5. Airport inoperable due to the major aviation occurrence.