·RE·r·rn:Ai2242 ,...._ • "{ 

1zacrc~s1ng the Securitz or the Oearatio~s Bui~dipi: 

1. To insure adec;uc.t aoeurity in the Oper&tions Buildiftf, 

the identity or All persons in the buildiDt: flt all tinN! should 

be known. T•a :-Jothods by which this res\J.t may be echieverl ere 

outlined below, f.ither 1:1.ethoc! rcc.uirea a door checker, prefera.t·l;y 

a mature and responsible wo!ft8n 1 in addition to th~ f'll!.rd n~• UfE4 

at each cntr&4.ce. The ohock~r woul1 be responBible ror the c<hl~ea1on or eeoh person to the build1?1£ •h1.le the fUft"rd•a duty woulc~ 

be a ~ilitrr) one. 

2. Cheek card .,-stem. - The checur to be ::-·rovidt\d with .an 

•in• and an •out" chPc: boi-rd.. Fa.ch board to be prov1cted dth 

banks or hooks nmber&d coordinstely. Stitt.able c::.rds, "'''A for aach indiv!d~l 11Hirned to enter the d·;or;ra.y 11 to bo r-rov1ded, e·.ch rJ:>.rd 

be:i.rlnc pert!ncnt and eadl;r verified de.ta rec:ardi11£ the 1n-ttv1'fual. 

The bQ~:-ds sh('llld be so ; laced thet the hooks, cards anri nu."'!lb.,'!'in£ 

are YislblP to no one exce~t tho op~rotor. 

An;r auth~ri~ed ?erson de~trinf &dJlission tn the buildl":l( 

•ill fiTe ~E: hook nuobc·r to thfl ·'?•rator •ho •11 ... :wve th" CL1r:i froa 

the "in• t.., the •ou'f.'' b>J:::.!"d :-rtnr Yerifyinc E~ch ohv:!.-·\.t~; !'rc'ls ~s 

eex o.r.d r~. In cai:;e of a. discrepancy, ,,r in CuF.e th,.. CGrd is ur..-ady on the "in" h..,olt, a rurtht•r check: 'fiU. be nade 11.t r>nce. 

f.1rrss fr:"Ia the bn1J.dint •i.!.J.. be ofltained in a Bialler ::w.:mer. 

). I:~ system - Bs.nks or loclts to be provided :n~ 11 bc~rn ill front 

or the ch;eker. :Eisch individual entitled to aece.:;a tc'• thfl bcl.!oint to 

be turnish!'d :.n u mumb~red key and thA mab€r of tile .. ock C'lpt"rt ted. 

bJ' thls my. Upon ent·.·rinc or lea."tnr, each 1ncliv1du!'\l "011ld turn 

hie 1oclc to tho ~"Jropcr 11 in• or ".:iut" μosition. 

On the r~verso side or the lock board TD.n~s will shc:r.r the 

checker the 11 1n8 or •out• set.tf.n(: or each lock:. Data al!!SocE tod 

with fta.Ch lock will ti ve 1nf."or:abtion for r6.~1id, "Yi !:iU&.l check ,.; ~ the 

entrant .. 

Atte~~to to ~per~te the 11'1"011£ lock will result in il!C!l!diate 

inveatieati1"n as sh,.,uld att£:a.;>ts :te ret:i 1ter in thf' •roL"l( rtirf.."1,tion .. 

4,. Thl .. e~ec;c c:u-d syatc= involves :io llff"lUea.l •~~terials b'Ut 

aecurit1 will be endl'lnfrred by indirtdua.ls in tJLe v1c1n1ty ov\:rhear1nt check nu::ibers. 

Tbo key syste:il w1 ,I be ·:"Jr~ costl)r but le.:::. J.i[lbl~ 1.o 

abus-e. Fit'teen thoust.nd c:tbin-1..U~ns bre aT&.11~.ble, a~ple to μra-

'11.de tor all por!Jonnel wi ~h a liberal rasnrTC for lOflSt"1' rand ''th"r 

situ~ tions requirlnc c.-,-;bina ti.">n ehrant es. 

JA'pproved for Release by NSA on 09-24-2013 pursuant to~'.'t>. 1352§ 
REF ID: A72242 ... ~ 

Increc.!)1D£ the Securi t.y ot the Opere. tions Build in::( Cont.) 

5. !Jotb s1ste-:na should be au,,,-;le:ncmted •1th~ .. .ornlne •cr:nip 

check•. thls check wo'Uld re~uire e~ch rerson to reporL !!ll!lled1Rt.ely 

arter entcr:tnc the bui.tc'!inc to a Cl'm.1p checker. Thls ch""cll:er, .re- 11901111~1~ tor chec.:dnc ti.boi.tt l,.) pe::-sono, would re: ort 111.V..en.danc·~ in tor:as 

ot ;ieraone acc~untcd tor to a •B~ock chec~~r•. ThP latter in t.a-n 

would re;o~t all Rb entocs in his ~~ock to the door chec~er •h~ would 

•er1fy ~1th hqr bourd. Di!ere;ancie~ would be iuvestif~t.l>d at ~nee. 

The !l"'m1nc. ehit">ck report:s 11r>ul<! be made at 8sYJ or ~o::a~ o~b'!'r J.edfn!:":t.ed 

time. Fntreea to l.he buUdint durint this pe?"iod woud b& note:1 by 

the d:ior cbeclce:r in some manner to prevent contust:on durinc ~h·t 

ao'X'lling re;.ort. 

C~ptbin Leo Ro~en, 

OIC, Section F. 

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