> Starliner is only certified for Atlas 5 I'm not certain what is meant by "certified" because it still hasn't made a human flight test yet. Notwithstanding t

> Starliner is only certified for Atlas 5 I'm not certain what is meant by "certified" because it still hasn't made a human flight test yet. Notwithstanding the retirement of Atlas and Delta, Starliner was intended to be compatible with multiple launch vehicles, including the ULA Atlas V and Delta IV, and the SpaceX Falcon 9 https://en.wikipedia.org/wiki/Boeing_Starliner https://en.wikipedia.org/wiki/Boeing_Starliner