Muab piv rau cov qhov rooj ruaj ntseg zoo tib yam, lub qhov rooj vault muab cov txiaj ntsig zoo hauv peb yam: Ua ntej, cov khoom siv zog; lawv qhov hnyav 1650kg (noj cov kev qhia tshwj xeeb ua piv txwv) zoo tiv thaiv kev ua phem. Thib ob, kev tiv thaiv zoo; ib lub qhov rooj ib txhij tuaj yeem muab kev tiv thaiv- tub sab nyiag, foob pob hluav taws, tsis muaj dej, laum- pov thawj, thiab txiav- pov thawj ua haujlwm, zam kev tiv thaiv kev nyab xeeb los ntawm qhov tsis txaus hauv ib qho kev tiv thaiv ib puag ncig. Thib peb, kev ua raws cai; sab saum toj- cov qhov rooj zoo yuav tsum tau kuaj los ntawm lub teb chaws cov chaw tso cai los xyuas kom meej cov qauv kev ncaj ncees nyob rau hauv cov xwm txheej hnyav (xws li hluav taws kub lossis kev tawm tsam hnyav). Hauv kev siv tiag tiag, lub qhov rooj vault xav tau kev tswj hwm kev ruaj ntseg (xws li ob-tus neeg ua haujlwm thiab kev saib xyuas tsis tu ncua) kom ua tiav qhov ua tau zoo tshaj plaws.
Thaum xaiv lub qhov rooj vault, cov ntsiab lus tseem ceeb uas yuav tsum xav txog suav nrog cov ntawv pov thawj kev ruaj ntseg (piv txwv li, Chav Kawm C), cov khoom tuab (stainless steel qhov rooj yuav tsum tsis pub tsawg tshaj 8 hli), thiab hom xauv (qhov muaj feem cuam tshuam qhov sib txawv ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob).
