.. _.,.._ 3i:~ ' e ~~~ti--nsioni: J.7 Augiwt 54 .. 

QUJD3 i.pm? FOR S¥®Rlll Q&ASSilJ:CfiTJ9N 

Section Paga 

GENERAL I 1 

'l'OP SECRE1' 00.DEht)RD II 6 

TOP SECRI!:I' m 7 81 

Smam' OODiiH>RI> IV 7 

SECUr v 8 

OONPIDllr?IAL VI 9 

UNOLASSIP'IED VII ll 

SECl'1W I - GERER,&L 

lo The classifJ'ing ot intOX"Dat.icn and material within the 01'7Ptologic 

field is an 1nwlftd and cam.pl.ex prcblemo EYe17 document to be claesitied 

mat be considered. as 'being unique and cne whose classiticnicn is dependent 

on factors existing vithin that docwnent alone. The decisica as to the 

proper class1ticaticn ot a document cannot arbitraril.7 be dRcnmined by 

referral to ot;her documents or to apecitic rules and regal.aticnao Each ita 

ot Wormaticn or naterial mst be adjudged sole]J 21 it.a om merits and 

classified according to its contento There are. homn'9r1 certain basic principles ot classU!cation which 1dll be o£ assistance to indiriduals within 

the 0?7Ptolog:1c tield in the solutian ot their classiticaticn problems, and 

it is proposed to set tort.h these be.sic principles 1n this docum.ento 

2o As a basis tor class:ttica.ticn,, it ia neceses&1'7 that all persarmel 

be thoroughl1' cmwraant with the secmrit7 cl.assiticatims established bJ' 

Ex:ecutiw Order 10501: TOP SECRET, SECRlW and OONFIDmr!ALo These security 

class1ticat1cns can be stated as follows: 

i 

&o fop ~eta Except ae may be express]3 prOvided bJ' statute, 

ili 

the use of the clasaitioation Top Secret ahtJ.l be authorized, b7 appropriate 

authori't)" • ~ for d~enss intormticn or mterial which requires tho highest 

degree ot protecticno The Top Secret claatd.ticaticn shall be applied .anl.J' 

Declassified and approved for release by NSA on 05-07-2014 pursuant to E.O. 1352e 

SE€RET 

~'! 
e ~(i)R~iJQo e 

6th mo (Sect I 2-a cont) ' 

to that 1nton18tion or materi&l the defense aspect ot which is paramount, 

and the unauthorized dioclosure ot which oculd result :1n except.ion~ 

gr&Te damage to the ?faticn such as leading to a definite break in diplomatic relations attecting the defense ot the United Stat.es, an armed attack 

against the United States or its allies• a war• or the OompP'.crt:i8e ot milit&17 or d~ense plans, ar intelligence operations, or sciaititic or technolog:l.aal dsntl.opaents vital to the national de.tmseo 

bo SegrS: Except &s my be a:preas]T prov:l.d.ed b.r statute, the 

use ot the claeaificaticn Secret shall be authorized., 'br appropriate 

a.mhorit7, ~ tor defense :lntormaticn or material the 'lm&Utborized diecloSUN ot which coald. reeult in seriws damage to the Nation, such as b,y 

jeopardizing the :lntematicoal relations ot the United States, Cldangering 

tht?t etfecti'ftness ot & program or policy or Yital importance to the national 

d&tense, or cemprom1.dng important nd.litar.r or de.tense plans, scientitic or 

technologica1 developnents important to natle~ dletense, or inf'ormatim 

mealing illlportant intelllgence operatials. 

Co Qcntidentia!s Except ae nay be expreaeq provided br statute, 

tha use ot the classit:tcation Ccnticlential shall be authorized b,y appropriate 

authorit7, ~ tor d&rense 1nf'ormaticn or material the unauthorized d1sc1osure ot which could be prejudicial to the defense :Interests ot the nat'!nno 

do Ccqtid§ial - Modified JJpll1ng Authoriz~: This does not 

constitute a aep.rate and d1stinct clasaitication cate&0170 Intormaticn Dll!t 

mGt the reqt.d.rem!lnts set; d0lt1'1 above ror Confidential materialo The additim 

ot the notation "Sllod.it:ted handling author1z.,j• cnl.7 permits modification of 

the storage and transmiasicn procedureao 

2 

SE€RET 
6tll revo (Section I !t) 

lo Within the crnit;ologic .f'ield. w JmR pror.l.cle even more tl&teguards 

tor Oil!" actiYit:les than are pro'ri.ded for under the standard seourit7 claosi~ 

tica'timao Betore &D1' ottioial 0?7Ptologic intonation ts to be diasemimtm. 

it met be deliendned that the recipient has a need-to-lmowo Intoniatic:m 

of an tmclassitied. nature pertinent. to the mieaicn ot c~logic actiTi.t7 

shoald net be di9CU8secl 'Id.th arqme except tor ~.t1cial budness parposeso 

4o Be10fld the basic olasaiticstiona establishcd by Executive Order, 

we NCognize that there are spec:lal ccnsiderations vhicb mat be rec6gnized 

aeparateq becauao or their inherent]T seneitiw n&t\1rea These special cao.-

aMeraticns pertain to apac:l.tie categories ot ccm•d caticns intelligence 

(OOMIHT) and are 1dentit1ed b7 the assignment ot a dist1nct1Ye codewo:rdo 

The classificaticm or ommrr in'l'OlftS two distinct. ccma1derat1Cll8:J the 

socurit7 ot the :lntormatim and the sensitiv1t7 ~the eoarce .traa 'llibich the 

inf'ormatiai w.a deri.nd.o Either or both cmaiclaratiana mq attect the olasaitiaaticn, dependent upcn whether the 1ntomaticn or the source is the more 

senaitiYeo 

5o Initialll", OOMINT ma.terial canss to thia Agcm.q as rav trattic mioh 

has bun :lnt~ed b1' 1'1eld sta1iion act.i.Tities throughout the worldo This 

t:r.atfic is classified no lowr than OONFIDmn'IAL until such time aa an 

anal\Ytical. processing ia beg\111.o Prem the anaqaia ot this raw traffic, w 

d!JriTfl three tJPta ot intslligenceo 

&o Cr)-ptintell1gence 1a that ODHCNT which reSalts .trcm ~­

sia of the lQ'Stems ttliiliHd. qy JDSssage Ol'iglnatora to ptOtect thEt traffic 

cmring its transmistd.aic. This :tncllld.ea spsech and Zacaimile securit:y qstemsa 

SECRET 
bo Trattic intelligence is that ooimrr Wich results .tran trat.tic 

an~:la or intercepted electrical ccmmmicaticnno This includes oom-.r 

produced bJ' all means short or crn~ea Of measage tmao 

Oo IntGW,gence der1"8d .fran the ~ or plaintez:li tratfiCo 

60 Intora.ticn derived frc:a. these three ~ical F009Sses ( Cl'Jl19;0 

anal1aie. traft:!o ~:18 and plaintezt ~) ia div;id.ed. into three 

aecurit7 cate&Ql"ieao 

&o Categor.r Ill OOMINt' (top Secret CcdMrd) CCX'ltaina into.natim 

of the higbnt- ol&esiticaticn and is the most. senaitiTe cate&017 vbose aource 

mnr.Jt be JHl;ected a1; all costso In general.6 this will incllld.e intormatian 

dGri"lf8d trc.. ~ (except for designated t1J>8a ot OOMIN'l)1' apec!al 

wu.tber ~ia and traffic an.al1'a1s of cert.dn h1&h l.eftl qate&u as 

apecUied bt existing authorities and highJ.1' 1ntmtiw plaitltma 

bo Categot7 II OOMml' (Secret Codeword) 1a less sensitive than the 

preC8d1q c&t•&Ol7 in that protectic:lll ~ its scarce is not alwQ'a the Oft%'c: 

riding conaidera.tim and is one 'Which can, 'bJ' aeoeptance ot a calculated 

ri8k, be dissafn&ted llith & less r1g:l.cl atAndard ot a9curit70 

e~ Category I OOMm? (Hm...code"Mm'd) 1a subj~ to the least restrictiw rigulat1Cll1S or the three ca.t$gories and w:Ul. .:lncJl&de certa!n tJPGS 

of low level. COMINT as apsc1fied 'bl' e.Uating a1lthor1tieao Material :In this 

cstsgcry w.1ll be classified no lower than ooNPl'.Dilt.rIAL stbollt the usignmo.nt o.t &rw cotle.mrd.o Exl;reme' car& mst b$ uhiliBed :ln placing OOMINT in 

this oa.tGgor'l'o (Seca paragraph 7 • Secticn VI - CX>NF'IDEN'rIALo) 

7 o In additim tc these categories~ there ai'8 certain other basic 

st&t.emmta that. are acceptable as guide lines in doterndn:Jng classiticaticnao 

SE€RET 
6th rno (Section. I - 7 cent) 3t!1eftM' 

&o OOMIH'l' w.l.ll normal.:cy' be cc:ausidGrad as .tal.llng within Categoey 

III except, tor such specil'ic qsteme. as have been mutualJT agreed upon b7 

UK and the UoS,, to be in other categcrieso Thia list ia aftilable in POOD 

(Ns.A-o62l)o 

bo standing operating procedures, peraannel repons, organiza.-

t.icnal charts and instructicne manuals goveming respectiw OOMINT arganimaticina 'W1ll be clasllitied according to the information contained thereint 

those indicating operational caiacit7 or success VJ.ll be classitied at 

least SECRET o Claesitication probleu mich cannot be resolved b.r the 

originator vll1 be referred to NSA Olassiticaticn Ad.'rieoq fanelo 

Co In reference to tJ'P' of cr:rptoqstema. the terms "low grade", 

ft.medium &rad•" and "high grade" are often ussdo Detini~icm or these cate ... 

gories are as tolJ.owsg 

(1) lov-grrS,~, Pertains to a ~-mic:b 

ottere onl;r slight resistance to ~is; 

tor example: (l) F~a.11" ci}ilers, (2) Single 

transposition, (3) Unencipha~ Clll!l-part cod.eso 

(2)' lll!dium grJl4e, Pertains to a cl'Jpl;oqatem which 

otf'era considerable resistance to c~is; 

tor example: (l) strip ciphers, (2) fol;tpbase transpositicn, (3) Unenciphered two-part oaclea. 

(3) hish-si:se, Pertains tc a Cl"J'l'hOSJ"stem which 

for example: (1) Cc:mplex cipher machinea, (2) metilna qstems, (3) Unknom two-part cocles enciphered 

v.l.th an additive booko 

SE€ftET 
f .' 811 As & means of ful'ther assistance to peraannel the Zollotdng 

'~ i 

class1t1eaticn ~· lines bairn been eotabliahedo R8membor thq are on:cy91"&1 in nature and that the class1.tic&tion ot 1m7 g:t.van item must be 

-~ establiahecl sole~ on its CM'1 meritso utilizaticm t4 these gUida lines can 

:g ] onl;r be done tbi'augh analog, comparl- and -1uati<aO In rart _., tho ;f 'i;olaesiticaticn or a s;1.-. :lial or Warmaticlll, deli ae tmin1ag pa1>l.1o&ticna, 

I will b9 OOI&LY OR ITS OW DRITS. EO 3.3(h)(2) 

~}, PL 86-36/50 USC 3605 1. , smTlO!! II - TOP TM1lli'i. COD1!l«JllD ~~C>~\ 1i( j

The following tnea ot information are to be classitieid 'l'OP SECREr 

0 

)o Intelligence which can be idenillied aa resulting trom the stuel1' ot 
&th Pav {ocmt) 

• 

The :toll.owing tnie• of intormat.ic:ll are to be cluait:ted TOP smRE!i 

lo The detai' ed mission of a OOMINT agenq or a •jor cmpanent thereof o 

2a Tho a:iataice of peacetime collabol'&tim in COMINT matte, bet;wa'!11

L 

' .. ~wJw~ 

Uo So agcoioa and other foreign gcworrD1Mmta. a:cept ~Uo ~I.;, ~~--C1V 

.Auatralialj.,..O 1.wra.- lfhich will be cluaitied SECRE?o 

3o Inte~c• 

~ 

cleri:ncl trca the ~is ot high-grade .foreign 

\~~'\ fo '-'.>ek4s. 

cr,Jptoqstems clar~i:d~. J>1'9dlect the reterence~ead to 

Svic+ "'"'te.U~~ ~("t-l4! A5+e'< J..~t: ~,~ ~ ~erencea as to the apecUic ems inTolvedo ft (Seo epbions• · irt..~. \ 

Sooticn II - '!OP ~ COI>m«>RD and parasrapb. l2sa Sectim m - U?lCLA.SSIP'IEDo) 

The :Col.lowing tnea of intOl'llll&ticn are to be oluaiftecl SBCRlf OODDl>RD& 

l. T:rat.fic intelligence deriftd. trcn the ~18 ot torei&n canm1cation11 after 2 September 194So E03.~{h)(2) 

PL 86-36/SOUSC 3605 

eme;pt. as noted in paragraph S, Section II - 'l'OP SECR&T OODFX>IU>o 

-----~1;\ intelligenae produced ban C&tego17 II 017Phoqetea. 

7 

SE€RET 
6th rev (cont) 

Sl1i'U9N V - SfAm 

The fol.lov.lng t.7J>ss ot intoratic:m are to be clusit'lecl SECRm': 

l. Intercept auignmentso 

2o Interc~ and D/r pl&ua and over...U operat.iooal ettecti'H!leu ot 

intercept and D/F orpnisa.tim as a 'Mboleo 

3o General ~8l"«1C8 to the fact or O~ic ACCN8 apinst; J.ow.. 

grade •av m1lit&17 crnt-087Rems during World. war II and the Korean ccntllct, 

without aD7' detailed description of the ~i~ methods Ueedo 

4o Details ot "1-atfic anal1'sis aa applied. to enell(V' cc.amrutcatians dur-

:.lng World War IIo 

60 Detailod listing and. locatiCll ot lJS Serrice operatGd OOMIRT 1ntercopt 

stationso 

7 o bistence ot peacet:!Ds coll aborat1m betvnn the US (HSA), Ult (GCHQ) _ 

Ce.Dada (cmmc), and Australia (DSB) 1n the OOMIHT field. 

So Codevordl(currmt and obsolete) applicable to Cate,8017 II COHIRTo 

9G Int'orma.tiCl'l relating to an entire q&t• of C1'1JJtOlog1c (B/D) equipJml.to 

10. 

ll.... Disclosures of both the 1dentit7 and debaila or the ~ia of 

lov-grade Ct!llG" a111tar.1 cr,ypto!Q'Stms during World War llo 

SE€RET 

J 
Th• toll.owing t1JJ811 ot :lntormation are to be clau:1.t1ed OOmmlr!'IA.I.: 

lo Associ&tim of operational COMIH'l' tune~ with specific activities 

and organizaticna by nau (except as pro'ri.ded under puapaph i. Section VII 

UNCLASSIPIED) o 

2o Gmeral tttatementa ~g to the operaticm.l ettectiwnesa 

ot incli:ridual intercept and D/F staticnso 

3o Intercapbed ravtrattic that shows no evidence ot •processing" tor 

OOMINT pirpoaeao Processing doee not :Include case notaticne. trequeaciea, or 

call. aiguao 

4o Intelligence relating to D/P mission usignmenta, bearing reports 

and .fix reports (i.eo• target trequenciea, C&ll-aisns, "piped signa'••" 

other signal intormation, 'bearings and fixes). proTided that no ccnpla: 

changing calleign qstema are inoludodo 

;. Th~ teru "United States Ccmunicaticm Intelligcce Board" and 

"Ue s. Ccwmicatia>. Securit7 Board" (abbreTi.atima •USCIB" and "USCSB" and 

tb1 a.bbrni&ticns tor their sdJccmm1ttees are unclass:U~ecl.)o 

60 PJ.ainten tactical or operatimal tr.attic provided that no :lnterpre= 

tations ot complex changing callsign qstema, cciphertd map references, or 

results or adTanced traffic anaqsis &N includ.edo TM.a .material ebal1. 

include local procedural and local grid and zone S711tems used tor artUJ.erydirectien, tactical control and moT•ent of .treat line uni.ta, ear~ .ming 

and exercise~ tactical cambat. ccntrol ot airOl'&fto 

9 

SE€RET 
7. Intellipnce derived tram ane.l.J'sia of:~ tracking report.a 

and T1sual. observat:l.<n 1-oport11 aa .tound in to.cticaJ. or operational trdf.:to, 

provided that enciphered aircr&ft. t7P0 deaignatims or interpretatims of 

c·cmplex Manging callaign systems arG not; inclwlodo Inclusicm ot local 

grid or son• reterenc1Sa,. loco.l procedural coma used tor> brerl.t;r and pWn 

text interspersed. with cover wol'd8 1a ~asibleo 

s. OOllIN'1' concerning weather derived tra:a tho aources des01"1bed. 1n 

paragraphs 6 and 7, cboYeo 

9o Special Intelligence frm Nat.·R.l tactical JIJlmeuv&t"ing code& and 

brff1'1t7 codeeo 

lOo SP901al crJptologic teaturea ot and masdtude of effort with 

Uo Detailed ratffrences top and deacription ot,, c~ic nccosn 

against speoitic militaey cr.r,ptoqatemo used ~ foreign powers 1*.veen 

11 Hovm.l>R 1918 and l S.ptem.ber 19391 and not und ainceo 

l2o Intelligence derived from the c~ais ot the 

b&r' 19390 

l3o The ead;ent or collaborat.im in CJJJ/Ul/US COMSEC atter$o 

140 The a:tent or production ct orntcrq,torie1 tor HA'fO .useo 

lSo The 1'act that HSA ia annieJisd spcciticl 

10 

EO 3.3(h)(2) 

PL 86-36/50 USC 3605 

SE€RET 
l6. Diagrams and descriptions ot COMnrl' and COMSEC cazm.mdcatim 

netwrks or related cammmi caticn plans incJming cryptographic srr&ng<i~ 

mflllta except; 'Mb.ere bigbar classiticati-on is justUiod by' the listing ot 

send.tin intercept statian1110 

17 o Cmsolidated listings and records ot c~anater:t.ala and cr,ypt0=> 

holdings 'bJ' shon titleo 

180 The broad ~lines ot Oporaticnal Traffic ~is proceaeeao 

l9tt B.elaticnahip with OU and. other CClltlUlllGJ:'S in the field ot maNTo 

SEQTIOH m - UNgμssIPIED 

!he tollov1ng tl"Pff ot into:me.ticn are Unclusitied1 

lo Asaociaticn ~ BSA with CJ7ptoloa 11 OOMIRT or OOMSEC and tho service 

or;vptologic agencieo - prov:ld1ng euch associatian 1n no llQ' adveraeq attect11 

the missiaus ot the agencies cmcemedo 

2. A11sociatim ot NSA with authors of technical. papers en matters al.ru.dT 

1n the piblic d"D&'!no 

3• The terms HSA P:leld ActiTity Far Fast (NSAFE), NSA Field Activ.t.t7 

&rope (HSAEUR) ~ NSAAL, NSAUK, NSA-Field Unit l (FU/PAO) and HSA Pi.eld Unit 2 

(FU/LANT). 

s. NSA ta possees1<n of or interest in computers or rapid. an&l.1tical 

:u.OO!nery, except as noted in Paragr,aph 10 mder Sectim VI - CONFIDDiTL\Lo 

60 SpecW.c campcnent5 o:l equipmcmt under reau.rch, it use or companont 

is no1' revealed.a 

ll 

SE€RET 
~~~ Cb~209 u ~ '--""'--- .... ---- ---

7 o Report ~ ina,peciticm trip to unclem-ed CGDlpl.DT that is a. proapec~ 

tin c~ractor, !t no mention ie made ot actual applicaticas ot companentso 

8. Short titleeg cover names11 and code 'WOl"dso (See the i'ollmdng 

excepl;ianat Paragrapi 4, Sootim m - !OP SF.Cllm': paragraph,, s.ctioD v - l' 

smBET; paragraph lO SecUca V - BmRBr,, and paragraph 17, Sectic:n VI -

9. Ccmntnicatims gi'Ving a perscn '11 aecurit;r ol-.rance and tne of 

:!ndoctrinati<m.o 

10. Projects number and titles used in justUicatic:n tor parchue of 

material.a vhm no technical uaage is specitiedo 

llt.i. Delia1led. rete.rence to,, and deacrili'icn ot, c~ic success 

against World War 1 military mntoasyatomeo 

l2o Reterenoes to intelligence der:l.ved frm C1'7Pboqst-. in vh:l.ch 

eucceoshl. ~1a has alNl.d1' been rnealed b.Y otticial Uo So actian 

(e.g., the Qangreasimal 1nTUtigat1m of the Pearl Barbar attack)o 

l3o An7 re.terence to intelligence or c~ic success against 

epwaticaal cr:rptoqatmm u d:i.aclostd b;r .toreiaJl publications appearing in 

th·~ ptbl1c cJanaino These reterencos ehould. be aoccmpanied tor th• pirpoae 

~ clarity b3" the soarce and be ldthwt further elaboratim or amplificatimo. 

140 The .tact that BSA produces and procures C17!Jtanater1al including 

SG!'tt or this m&terialo 

'15. The fact that the US collaborates with other HA'D> po1'8rs an COMSFaa 

12 

SECRET 
' 

II 

OATEOOBIES OF OOlmiI 

JJNDp OONSIDJruZIOif BY USQIB 

E03.3(h)(2) 

Ia CATBOORI :{ PL 86.,,36/50' USC 3605 

Ao Assigned -

.30 D/r miaaicn usigmanta, bearing reports and fix reports aa 

swt forth 1n subparagraph a.. .Annamre Bl, Rm.aed AppeDd:lx "B"• UXUSA ~ 

Bo Suit.able .tor Asrdsnnmt to Category I -

other plaintab, traffic intelligence or amt intelligtnce aa · i 

SCJt forth :fn paragraph 2, .AJm9Xm'O Bl, Revised Appsndix "B•o 

IIo CA'rlg)Iq :g: 

A. Assigned -

l. All trattic intelligence including p1ilu text acept tha'b apecifiOA\lq assignecl to Categoriea 1: or m h&reino 

2o CrJpt 1n'tell.1gence produced from tho cr,ptoqatema l1ated 1n the 

attached. .Annex lo 

;o FrMll' a"lailable priTacy and brevit7 .,-steu such aa caauroi-.l 

4. Traffic inteW,gece deriYed traiO and TD.lo 

Bo Suitable tor aeaiwnunt to Categoey II -

~ 1ntellipnce produced tran the cr.rpl;oqstesu listed in 

the attached Annex 2o 

l3 

SEERET 
( 

-1 -ii 

IIIo QA'l'EG:.~m 

A... All crypt iutel.lig&nca prc;duced b'a.1l c~oqst-.s other tha.u 

Qlt CJ1.-"'~~ Ithoaa listoo tor atSsigDE.ent to Catee;o:ey II ~o 

Bo Trat'fic intalligencG ba.sri in who.le er in part cm tha maqsis 

or use of id.«nt1.fioations and other data derived fI:w Categoi.7 III OOIUl='T o 

r-~C· OOMtNT bud en traffic obtaincad tram s~11.-~. . litiiiati" of 

1.:.1-4 , // v 

- - '!OP SECREr. KO 3.3(h) (2) 

(fr) I 3 I -50 USC 3507 

·D. Stl.b«>C&tegoriGD of C&togo.ey III: 

Ao 

Co 

I 

14 

SECRET ~ 

' :. 

r. 

~ 

,, 

I, 

,i 

~ ~