MEMO ROUTING SLIP 

1 ltAME OR TlTLE 

Mr. E. 1. Dingler ORGANIZATION AND LOCATION 

R/D 

'REMARKS 

:A :.;s;;; ~:;::. APP::.G:.'A:.S, :Jl&IPPROYA.LS, 

WONCVRRENCES. OR. SIMll.AR. ACTIONS 

INITIALS 

DATE 

CIRCULATE 

COORDINATION 

FILE 

INFORMATION 

NOTE AND RETURN 

SEE ME 

SIGNATURE 

l. As prond. sed, I 11DJ. sending ;you herewith the 

paper which sets torth USCIB c1assi.tlca ti.on principles tor references to Sigint matters in lectnrea. 

This ma7 or ma:7 not be of assistance to you in 

connection vi th the problem which ;you outlined to 

me the other day. 

2. Please return thi 11 to me as soon as you 

have finished w1 th it as copies are scarce • 

. _,, / //1 ,-., (:; .,.'f:i 7..e.-h I 

( fJI, h~ °I )i-1a-.i . ':)' j 

FROM NAME OR TITLE DATE 

•---------w~1""L+t+.11A~N .... ~ -t=FT-. ""', .. R .... •E ... 1.t... M,...A... N ___ ,19 Jan S.3 ORGANIZATION AND LOCATION GONSULTANT 

Re laces DA AGO Form 895, 1 Apr 48 and A.FR 
USCIB 

ClliSsi.tieation 

-

Non-classified 

RESTRICTED 

co:JFIDEUTIAL 

OOWFIDENTIAL 

CONFIDENTIAL 

SECRET 

LSIB 

'Maisi.fication -· .. (Not mentioned) 

COllFIDENTIAL 

SECRET 

SECimT 

SECRET 

SECRET 

SECRET 

~f!Qtl~' 

N0J1<;»apeaific or hypothetical 1~e£erence to 

Communication IntelliBence and Signnl Intelligence ?'iithout aey ~sooiation of tlw:l:. 

fun.at.ion with spacifi.c acti:<ri.ties and 

orgll!'lizations otheia than A'r.firJ' SOOUl"i W. 

Agency a.a a. whole 21'.d u. s. !avo.l eooimWiicatians as a whole. 

Association of apaci.fic phaaoo of COti1.a 

munication Intelligoo.oo activity w.i.th 

~of unitso 

ElemelltaZ"y principles of 1;ra£.£'ic amlysis 

and military cryptanalyaiso 

The terms ~ted States Qa;mnmication 

Intelligence Doal'd" and "United States 

Comunication Intelligence Coordinat.ing 

Committee", and their abbreviationa, 

nuscIBfl and nuscIOO" • 

Association of broad O:nm::runication In'Ge.1.s 

liaence functions ldth specific activities 

and organiza:tions by nsma (exoopt es pro• 

v.Lded undw Unon-cJ.assifiedCTI ~ aboito) o 

Charts and desc:eipti.ons of' the organitm:M.on. 

o£ A1"D.W Seeuri i:.y Agency, o:f Cara:ruu.;i.cationa 

Su;pplem311ta.ry Activities, and 0£ tJSC!U• 

USCICCo. 

Individual intercept and D/F station products 

a."ld operationa.1 ei'fect.i. venasso 

. Standing operating xm-ooedi1res ant! .i.?lStzruet.ion 

manuals eoverning tJie respecr'Gi.ve Cornmwication Intelligence organization . ( excc..<pt 

instructions to proceeaing aetiv.\.t.ien govaming their processing detail aW. the hsndling 

and security of their final prodw:rtso) 

Detailed intercept and D/F plans Dlld tJ".ror-m 

aJJ. opera:t.ional. ef£ect.i.vcness of intercept 

and n7F omaniza:tion as a mole. 

TOP SECRET COPSE 
USCIB 1.BIB 

diisilf:loation 'Ciiiisitlcation 

'l'OP Sl!XlRE'l 

(I~ot r118!1tl.oned 

but se1t191dent) 

(Ilrot author1ssd 

under 81fJ' 

m.rcumstances) 

TOP. SF.ORET GLnr.r 

. - OLIN'? 

General reference to the fact ot cr,ypt- analytic 

mUi tal7 

success 

cr;yptosys 

against 

tema during 

~ 

and befmse 

V/orld War II. 

References to the Cocrmmicat1ons Intelllgenca (identified as such) derived from 

low-grade militaiy c~tosystems during 

Vforld Viar IIa and f.rom thoso higll-crad& 

systems in the case ot which succsesful 

C1.7Ptanalyais has alree.ttr been reveal.Gd 

by official action (e.g. the Oc>ncreasiona'L 

investigat1m ot the attack on Pearl 

Ilarbar). 

DetaUs of traffic analysts (not ilrvol'Ving 

high-grade call~ decr.vPt1cn} as applied 

to enaqy oommmications during Vlorld Viar 

II. 

Recoztds of the proceedings ot USOIB and 

USOIOO am sub-cofrmittees thereof, unleso 

lli>re hi~ cl.assi£iedo 

IJ.be dataned mission of each Ool.IllilUllication 

Intelligence organization as a. w!iolea 

Instructions to procese:Lna activities 

gowming thalr p:rocesQ.rl..g in detail and 

t.he handling au:1 security of their tilt.al 

product.a. 

ibe fact of mv- pe8Ce"ttirne collaboration 

:i.n Conmunication Intelligence im.ttm's 

between u.s. acenc1es and foreign agmlCieS• 

(E2rcepb as prorided i.1l1der 8 SEO.RETl1 above) 

references to tho Con:mmnication Intell:f.gsnoe (iden'IAi.fled as such) dm"Ved from e~ 

anta:b'sis ot el1EfiltV' milita.ty systems o£ 

higb-gr&de (except the hi8hest grade) 

d\1F.i.ns World War III) provided the references 

cannot lead to inf'erencos as to ·tt:ie specific ~tei;is 1nvolvsd~ 

Detailed re.terences to~ and dascrlptions o:r, CX'JP~ success agaimrt l~ 

milita?y cr,ptoeraphic systems dmng and 

betore Vlorld \Tar IIo 

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USCIB LSIB 

1liiiiiticat.ion 'm:aisii'ication 

'.l!OP SECRE'r and SECRET; with 

canmunication Intoll2gence 

codeo4m:rd designations. 

Tha subject matter .falJ.ing within these 

categories is defined in CSP l.80$ (A) 

am Viar ~t Regulations f"o:rSecuri:{zy' and Dissemination o£ Communication In~eroe~ as interpreted and 

amplified below: 

The S"peoial code ward applied to Si>eciaJ. Intelligence shall be used to 

designate items of infol'r.laticn, all or p~ of which haw been derived from Special Intellicrence~ whet.hat" or not such derivation is obvious~ and i.."lf'orraa.tion uhi.ch 

reveals the degree o:f success attained. or tho ability to attain succeas in epscific 

problems in the field of Special Intelligerice1 and all docum.ente and oommmlications 

in which tllis code word itself neeess~ appears in its code word sonsea. 

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