海洋 かいよう投棄 とうき規制 きせい条約 じょうやくではありません
kaiyōtōkikiseijōyakudewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 海洋投棄規制条約

1. It is not the Convention for the Prevention of Marine Pollution by Dumping of Wastes and Other Matter.

Negative
Polite
Formal Register