NAVAIR INSTRUCTION 4120.11 From: Commander, Naval Air ...

NAVAIRINST 4120.11
IETM. Content statements applying to the IETM are classified
into two types:
a. Those applicable to the construction of IETMs such as those
dealing with the IETM technical structure and those
required to support use of a particular IETM. Those
applicable to specific technical processes to assure
effective use of the IETM for the logistic support
intended.
b. Common content guidance for IETM structure used for such
features as front (introductory) matter, list of contents,
glossary, list of acronyms, statement of applicability,
IETM number, IETM date, and IETM edition.
A.4.2 Abbreviations and acronyms. Acronyms, abbreviations, and
unusual terms may be used in any IETM text, when applicable. It
is not necessary to spell out the words completely after the
first use of an acronym or abbreviation.
a. Abbreviations and acronyms, which are accepted as words
(radar, sonar, laser, etc.) need not be included.
b. Abbreviations and acronyms used should be in accordance
with ASME Y14.38, except that abbreviations may be plural
(s) or possessive ('s). New abbreviations and acronyms
should not duplicate those presently listed in ASME Y14.38
where possible.
c. When abbreviations or acronyms are used as markings on the
equipment (placarding), the same abbreviations or acronyms
should be used in the IETM.
A.4.3 Security classification and protective markings. Whenever
classified and/or distribution restricted information is
displayed an indication of the classification/distribution level
shall be made within the viewer. When specified by the
acquiring activity, a classified IETM should be prepared. The
security classification markings for classified IETMs, should be
identified in accordance with DoD 5200.1-R and DoD 5220.22-M,
Executive Order 12958. For guidance on classification and
handling restrictive markings on Compact Disk-Read Only Memory
(CD-ROM), refer to MIL-HDBK-9660.
A.4.4 Style and format requirements for technical content. The
technical content format requirements for IETMs should be in
accordance with the general requirements as specified by the
acquiring activity.
39 Enclosure (4)