Department of Defense
INSTRUCTION
NUMBER 8551.01
May 28, 2014
Incorporating Change 1, July 27, 2017
DoD CIO
SUBJECT: Ports, Protocols, and Services Management (PPSM)
References: See Enclosure 1
1. PURPOSE. In accordance with the authority in DoD Directive (DoDD) 5144.02 (Reference
(a)) and pursuant to DoD Instruction (DoDI) 8500.01 (Reference (b)), this instruction reissues
DoDI 8551.1 (Reference (c)).
a. Updates policy and standardizes procedures to catalog, regulate, and control the use and
management of protocols in the Internet protocol suite, and associated ports (also known as
“protocols, data services, and associated ports” or “ports, protocols, and services”); referred to in
this instruction as PPS on DoD information networks (DODIN) including the connected
information systems, platform information technology (IT) systems, platform IT (PIT), and
products based on the potential that unregulated PPSM can damage DoD operations and
interests.
b. Establishes PPSM support requirements for configuration management and continuous
monitoring to include discovery and analysis of PPS to support near real time command and
control (C2), of the DODIN and Joint Information Environment (JIE).
c. Establishes on the unclassified Risk Management Framework (RMF) Knowledge Service
(KS), at https://diacap.iaportal.navy.mil/login.htmrmfks.osd.mil, a presence for current PPSM
policies and procedures and provides a mechanism for the DoD cybersecurity community to post
and share PPSM practical solutions and documents with other DoD community and mission
partners.
d. Incorporates and cancels Assistant Secretary of Defense for Networks and Information
Integration/DoD Chief Information Officer memorandums regarding PPS (References (d) and
(e)).
2. APPLICABILITY. This instruction:
a. Applies to OSD, the Military Departments, the Office of the Chairman of the Joint Chiefs
of Staff (CJCS) and the Joint Staff, the Combatant Commands, the Office of the Inspector
