secret - (SPAWAR) is - The US Navy

its enclosure or attachments and the transmittal itself.
Provide instructions, at the top left cornsr, to indicate
highest overall classification level of’the transmittal
(includinq all applicable warninq notices or intelligence
5510.36
the
control
markings in parag;aph 6-24.1 fofiat). Additionally, -indicate how
applicable warning notices and intelligence control markings can
be removed through removal of varioue enclosures or attachment.
For example, if a letter of transmittal classified SE- is
transmitting a document classified CONFIDENTIAL/NOT RELEASABLE TO
FOREIGN NATIONALS (enclosure (l)), mark the transmittal
‘SECRET/NOT RELEASABLE TO FOREIGN NATIONALS--SECAIW UPON REMOVAL
OF ENCLOSURE (1).”
3. There are no marking requirements for unclassified letters of
transmittal which are transmitting only unclaeeified encloeuree
or attachments, with the exception of the controlled unclassified
information epecified in paragraph 6-11.3.
6-25 MAAXINQ ELECTRONICALLY-TRANSMITTED CLASSIFIED MESSAGES
1. Mark classified electronically-transmitted meeeagee in the
eeme manner ae a classified document, with the following
modifications:
a. The first item of the text ehall be the highest overall
classification level of the meeeage, and may be printed by an
AIS, provided the marking etands out from the reet of the text.
In older AISe thie may be achieved by surrounding the markings
with asterisks or other symbole.
b. The ehort forms of certain warning notices and all
intelligence control markings, ehall be spelled out following the
message claesiflcation level which precedes the meseage eubject
line (eee paragraphs 6-11 and 6-12).
c. Classified messages shall be portion marked per paragraph
6-5. However, certain preformatted meeeagee, such as RAINFORM,
CASNEP and eimilar reporting formate, need not be portion marked
as they do not contain identifiable portions. The overall
claeeification, downgrading and declassification markinge satisfy
the marking requirements for these type meseages.
d. The proper completion of the “DECLC9 line for meeeages is
outlined in exhibit 6B:
SECNAVIN8T 5510.36
6-21