Anti-circumvention investigation may be initiated on application or authority motion, with possible provisional assessment and guarantees. An investigation into circumvention of countervailing duty may be initiated on a domestic industry's written application or by the designated authority on its own motion where sufficient evidence exists; the application must present adequate evidence, the exporting country's government must be notified before initiation, provisional assessment and guarantees may be sought pending decision, applicable evidentiary and procedural rules apply, and investigations are to be concluded within twelve months, extendable for recorded reasons up to eighteen months.