ISikhululo soVavanyo esiseMbindini (CES) liziko elisebenza ngasese, elichongwe yi-US Customs and Border Protection (CBP) kodwa hayi phantsi kwentlawulo ethe ngqo yegosa leCustoms. Kulapho imithwalo evela kumazwe angaphandle okanye ethunyelwa ngaphandle yenziwa ifumaneke ukuze ihlolwe ngokwasemzimbeni ngamagosa eCustoms ukuqinisekisa ukuthotyelwa kwemigaqo nemithetho.
I-CES isetyenziselwa imisebenzi yeemviwo ehlanganisiweyo, iququzelela ukusetyenzwa kwemithwalo ngendlela eyiyo. Xa ukuthunyelwa kukhethwe ukuba kuhlolwe, kuthunyelwa kwi-CES. Umrhwebi othenga kumazwe angaphandle unoxanduva lwazo zonke iindleko ezinxulumene noviwo lweSiko kwi-CES, kubandakanywa uthutho oluya nokubuya kwi-CES, umrhumo we-CES, kunye nokugcinwa. I-CES inokusekwa kulo naliphi na izibuko okanye ummandla ophantsi kolawulo lomlawuli wezibuko.
