1. Daim ntawv thov ntawmcov khoom siv reflectiventawm cov paib tsheb, cov paib, thiab cov cim tau txo qis qhov xwm txheej ntawm kev sib tsoo tsheb thiab txhawb nqa kev ruaj ntseg lav kev sib raug zoo ntawm tsheb thiab txoj kev thiab tsheb.Cov khaub ncaws kws tshaj lij rau cov neeg ua haujlwm khiav tsheb, cov neeg tsav dav hlau hauv av, cov neeg tua hluav taws, cov miners thiab cov neeg cawm siav yog cov khaub ncaws ceeb toom pom zoo.

2. Txawm hais tias cov khaub ncaws no tau teeb pom kev zoo thaum nruab hnub lossis hmo ntuj, lawv pom qhov pom ntawm tus neeg hnav, ua haujlwm ceeb toom rau lwm tus, thiab zam kev xwm txheej.Yog li ntawd, nws tuaj yeem hais tias daim ntawv thov ntawm cov khoom siv cuam tshuam hauv kev npaj ua lag luam tau tsim.Qhov ntsuas loj heev.

3. Kev ua lag luam pej xeem feem ntau yog hais txog kev lag luam teeb, mines, railways, tub ntxhais kawm khaub ncaws, ntau yam khaub ncaws, khaub ncaws, thiab lub nra.