Ntev npaum li cas yog tus explosion-Proof Certificate Valid

Nyob rau hauv txoj kev ua lag luam, tawg-pov thawj daim ntawv pov thawj feem ntau tuav ib validity ntawm 5 Xyoos. Hnub expiration yog kom meej meej cim rau txhua daim ntawv pov thawj rau cov neeg uas tuav saib.

Piv txwv, Lub sij hawm validity rau ib tawg-pov thawj daim ntawv pov thawj yuav span ntawm kaum ib hlis 4, 2016, kaum ib hlis 4, 2021 — raws nraim tsib xyoos.