Defense Collaboration Services (DCS) delivers a suite of reliable, secure, and cost-effective collaboration capabilities to Department of Defense (DoD) Enterprise users. The DCS suite of capabilities is accessible to all DoD personnel on the Non-Secure Internet Protocol Router (NIPR) network with a Common Access Card (CAC) DCS PMO Engineering . July 30, 2019 : All . Update based on feedback received from DCS Engineering & Service Manager : 0.2.c . DCS PMO Engineering : July 31, 3019 . Pages 10 and 13 : Page 10 (changed the wording in the header); Page 13 (changed the wording in item 2) 0.2.d . DCS PMO Engineering : August 27 2019 Corrected the GSD email on page