There are generally three stages in the review process : Expert review -LRB- NUMBER@1 -- NUMBER@2 weeks -RRB- Government/expert review Government review of : Summaries for Policymakers Overview Chapters Synthesis Report Review comments are in an open archive for at least five years .

There are usually three stages in the review : Expert review -LRB- NUMBER@3 weeks -RRB- Government/expert review Government review of : Summaries for Policymakers , Overview Chapters , and Synthesis Report Review comments are open to the public for at least five years .
