Trinity security regulations

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Subjec'bs Trinity Scourxty Hesulationa Major da Silva ' a office and should be brought to the attention of ihe msa 'a« Departing groups or iadi-Tidtiala will atop by liajor do Silva's office for an «acplanation of security objectives at Trinity, This •frill be done iraracdiately before departure. Each individual aeed receive this explanation only once, but will receive it regardless of the avanber of previous tripe to Trinity. Ihie talk will be given Xty Lt. R. Ao Taylor. ^b. All personnel goiaag to Trinity 'Hill sleep and eat at the cstmp site^^and not in nearby tovna. Ihe practice of eating and sleeping at the local hotel will be stopped at once. Lt. HoTiax-d Bush advises that he is eqxiippcd to provide these aarvicea to all persoos, *£, ^hile at Trinity, recreation trips for movies, dinners, etc., to nearby tovsms will not be iaBdoJ?jL_anjt"peraonnel, Officers and enlisted men are under latXitary orders which prohibit such activities, and civilians are expected to cwnply to the letter and the spirit of »d, TSxere will be a civilian representative of my office at ^ Trinity at all times after 15 February i945« ISiis person will carry a letter identification signed by vaiSt and ma^ be called on for advice in security matters. Hs will also aid in providing official conxnunio cation facilities, after requests for same have been cleared tiu:ou£:h *%, ;;uestions regarding laundry, mail, cleaning, etc., should be II Pass ayatam at Trinl ^ »1» nrior to initial departure for Trinity all Sit© Y personnel will secure a pass tvom Lt. R. A. Taylor of this office, "Z. This pass will be presented" at the guard bouse at the base of the first guard tower, where it will be sziohanged for a badge. This badge :mu9t be worn at all times fdille at Trinity. The pass will be held at the aforonentianed guard house until departure froia Trinity. *3. Upon departure from Trinity the bed,c^o will be exchanged for the original pasa at the cuerd house. All passes will be returned to Mmmm manner to an

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'4» Guards ^ i l l 1:8 iastrxioted l;o hcnor tlis pass issued by Ivt. Taylor i f the bearer thereof X3 apprehended at aay point iira?: /^uard tovrer. At a l l other points ?jithin the area a bad^o rauat be •Kora i f a_/prehen3ion ia to be avoided, ^'•3' Ad-alsaion of visitors to Trinity who mey not coraa to Site Y Trom -fche first tiuard to'Ker, laall such cases this oiVicQ should bo advised in advance of the •vicit in order ^thut proper airanseasnts for adffliacion iiay be .r«ide vjith L';. Bixch. (Signed) Peer de Silva, -Major, Corps of Engineers I I I Notification to Lt. Bush of Proposed Trios Lt. Bush has requested that he be n o t i f i e d one or two days in advance of the possible arrival at Trinity of five or laore people. Tuis notification should be raade through Lt. Taylor's o f f i c e , Lt. Taylor will telephone Lt, Bush.