The Pomplancian Off Planet Mission was a 23rd century landmark on the planet Pomplance.
History and specifics[]
The Mission was maintained for cultural and diplomatic functions with offworld governments. In 2269, it hosted the Pomplance conference attended by representatives of the Federation, Klingon Empire, Romulan Star Empire, and Pomplance. The Romulan delegation would not attend unless all participants remained in the facility for the duration of the event. (TOS audiobook: In Vino Veritas)