Initiation of anti-dumping investigations: application support and evidentiary sufficiency determine whether investigations proceed. Initiation of anti-dumping investigations requires a written application by or on behalf of the domestic industry supported by evidence of dumping, injury where applicable, and where applicable a causal link; the designated authority must examine industry support and evidentiary adequacy before initiating, may treat an application as by the domestic industry when supported by a majority of output among those expressing views, may initiate suo motu on sufficient information from customs or other sources, prescribes the period of investigation, and requires notification to the government of the exporting country prior to initiation.