For a nation or union of nations other than the U.S.:

Identify the government authority or authorities responsible for the investigation of civil aircraft accidents

and for determining the probable cause of such accidents.
Compare and contrast the civil aircraft accident notification and reporting requirements in that nation with

those of the NTSB described in the text.
Determine whether that nation or union of nations has assigned responsibility for investigating civil

spacecraft accidents to that or another authority.
Provide hyperlinks to references relied on.