NASA Outlines The Future Of ISS – And Beyond

NASA Provides Updated International Space Station Transition Plan, NASA
“As NASA looks forward to a decade of results from research and technology development aboard the International Space Station, the agency is taking steps to ensure a successful transition of operations to commercial services. In response to Congressional direction, NASA has now provided an updated International Space Station Transition Report that details the goals for the next decade of station operations leading to a smooth transition to commercial services, the steps being taken to develop both the supply and demand side of the low-Earth orbit commercial economy, and the technical steps and budget required for transition.”
Selection Statement For Commercial LEO Destinations (Announcement Number 80JSC021CLD), NASA (PDF)
“In order to cost-effectively meet U.S. long-term research and technology development needs in LEO, a robust commercial human spaceflight economy must be established including commercial destinations and new markets to allow various customers access to a broad portfolio of commercial products and services. Development and operation of a commercial destination to provide those services will require significant private investment over many years and significant non-NASA demand to ensure long-term financial viability.”