这个产品必须经过官方认证才能销售。

This product must be ___certifiable by the authorities before being sold.

他居然想在冬天穿着短裤去北极旅行，真是疯了！

His plan to visit the Arctic in shorts during winter is totally ___certifiable.

法庭判定他在案发时精神失常。

The court ruled that he was ___certifiable at the time of the incident.