Yes, the DoD formally adopted ANSI/S20.20-2014 on 4 June 2015. Please refer to the official announcement on the ESDA site HERE.
For more information on recent changes made to S20.20, see the JAN/FEB edition of the ESDA’s Threshold – Significant Changes Made From the 2007 Version To The 2014 Version Of ANSI/ESD S20.20
To download a complimentary .pdf of ANSI/ESD S20.20-2014, go to the ESD Association web site – www.ESDA.org.