Skip to content.
About GPO   |   Newsroom/Media   |   Congressional Relations   |   Inspector General   |   Careers   |   Contact   |   askGPO   | Search  

Home > SID
Public Key Infrastructure (PKI)


  • Certified as a Shared Service Provider (SSP) PKI – July 2007
  • Cross-Certified with Federal Bridge Certification Authority in December 2005
    • Met all exacting requirements and standards of Federal PKI Policy Authority and federal policies
  • Meets all Federal PKI requirements
  • In operation at GPO since 2004

GPO PKI Services

  • End User Certificates
    • Digital Signature Certificate
    • Encryption Certificate
  • Meets all Federal PKI requirements
    • LRA requires a smartcard certificate
    • Extra costs for smartcard and smartcard reader
  • In operation at GPO since 2004

Certificate Uses

  • File encryption
  • Email encryption (S/MIME)
    • For Outlook email
  • File signing
  • Other uses are possible in consultation with GPO PKI


  • Device Certification Registration doc
  • Example SF-1 Form for GPO PKI pdf
  • GPO PKI Pricing — GPO Circular Letter 744
  • 508 Compliance for Entrust ESP v9.x pdf
  • Principal CA CPS (Certificate Practices Statement) pdf
    • Subordinate CA CPS (Certificate Practices Statement) pdf
  • Certificate Policy pdf
  • Certificate Registration pdf
  • Certificate Revocation pdf
  • End User Subscriber Agreement Form pdf
  • Memorandum of Agreement for PKI Services Template doc



Public Key Infrastructure (PKI) Program

Charles (Chuck) Riddle
Chair, GPO PKI Policy Authority

John Hannan
GPO PKI Operational Authority

732 North Capitol St. NW
Washington, DC 20401

Certificate Policy (CP), version 1.3.1,
August 17, 2009

PCA Certificate Practice Statement (CPS),
version 1.7.4, September 17, 2014

SCA CPS, version 1.7.5, September 17, 2014