The Pacific Grebe, delivered in 2010, is an INF 3 certified vessel under the INF Code of the International Maritime Organization (IMO).

She is the third of the new generation of PNTL vessels and, like her sister ships the Pacific Heron and Pacific Egret, her design builds on the experience of operating purpose-built nuclear carriers since 1979. The Pacific Grebe is primarily designed for shipping conditioned nuclear waste. Pacific Grebe entered full service in 2011.