NASA Cost Estimating Handbook Ver 4. 0

This is the fourth edition of the National Aeronautics and Space Administration (NASA) Cost EstimatingHandbook (CEH), updating the 2008 edition. The purpose of this handbook is to serve as a guide for costestimating at NASA. The intended audience covers the non-estimating professional and the new costestimator, as well as experienced analysts. The intent of this revision is to provide an update reflectingsignificant policy changes since the 2008 edition