DEPARTMENT OF THE NAVY
OFFICE OF THE CHIEF OF NAVAL OPERATIONS
2000
NAVY PENTAGON
W
ASHINGTON D.C. 20350-2000
OPNAVINST 9640.1C
N83
17 Jun 2019
OPNAV INSTRUCTION 9640.1C
From: Chief of Naval Operations
Subj: SHIPBOARD HABITABILITY PROGRAM
Ref: (a) T9640-AC-DSP-010/HAB, Shipboard Habitability Design Criteria and Practices
Manual (Surface Ships) for New Ship Designs and Modernizations
21 December 2016
(b) T05U3-085, NAVSEA Design Practices and Criteria Manual for Submarine General
Arrangements Design, 19 August 2012
(c) SECNAVINST 5000.2F
(d) SL720-AA-MAN-030, Navy Modernization Process Management and Operational
Manual (NMP-MOM), January 2010
1. Purpose. To provide Chief of Naval Operations (CNO) policy regarding U.S. Navy
shipboard habitability and to establish procedures which enhance conformance with and approve
deviations from established design criteria.
a. To assign responsibility for shipboard habitability program implementation and designate
Office of the Chief of Naval Operations (OPNAV) Director, Fleet Readiness (OPNAV N83) as
shipboard habitability manager.
b. This instruction is a substantial revision and should be reviewed in its entirety. Director,
Fleet Readiness (OPNAV N43) has been renamed to Director, Fleet Readiness (OPNAV N83).
2. Cancellation. OPNAVINST 9640.1B.
3. Scope and Applicability. This instruction applies to U.S. Navy ship designs, and
commissioned ships over 150 feet in length or manned by 100 or more persons. Smaller ships
will be treated on a case-by-case basis, with established criteria providing a foundation for
habitability design, recognizing that design constraints may preclude reasonable attainment of all
larger ship standards.
4. Discussion
a. The Navy’s primary mission is to be prepared to conduct prompt and sustained combat
operations at sea in support of U.S. national interests and the national military strategy. The
Navy is dependent upon shipboard personnel to accomplish this mission and, therefore, must
