Department of defense far supplement dfars as of july 1 2011 cch editorial staff on amazoncom free shipping on qualifying offers department of defense far supplement dfars as of july 1 2011. The july 2019 department of defense far supplement dfars includes the full text of the dfars and dfars procedure guidance information dfars pgi you gain at your fingertips access to dfars regulations and related guidance including all interim rules final rules and change notices issued prior to july 1 2019 along with an easy to use . The july 2020 department of defense far supplement dfars includes the full text of the dfars and the dfars companion resource procedure guidance information dfars pgi you gain at your fingertips access to dfars regulations and related guidance including all interim rules final rules and change notices issued prior to july 1 2020 along with an easy to use topical index. The july 2013 cch department of defense far supplement dfars includes all procedure guidance information pgi change notices issued prior to this july 1 2013 edition along with a cch index covering the dfars through that date and is intended for use in combination with the july 2013 cch far. The january 2019 department of defense far supplement dfars contains all of the final rule interim rule and pgi changes made since july 1 2018 previous edition department of defense far supplement dfars as of july 1 2018 isbn 9781454895695