PPD and EO
Presidential Decision Directives & Executive Orders
1998 – PDD 63 Critical Infrastructure Protection
2009 – PPD 1 National Security Council
2011 – PPD 8 National Preparedness Homeland Security
2013 – Executive Order 13636 Improving Critical Infrastructure Cybersecurity
2013 – Executive Order 13636 PPD 21 Fact Sheet
2013 – PPD 21 Critical Infrastructure Security and Resilience
2015 – Executive Order 13691 Promoting Private Sector Cybersecurity Information Sharing
2015 – ISC Interagency Security Committee PPD 21 Implementation WhitePaper
2016 – PPD 41 US Cyber Incident Coordination