Ifite moteri ya mazutu ikorerwa mu gihugu kandi yizewe cyane, itanga ingufu nyinshi mu gihe ikoresha lisansi nke. Ikiguzi cyo kuyibungabunga kiri hasi cyane ugereranyije n’imodoka zitumizwa mu mahanga, bigatuma ikoreshwa mu gihe kirekire nko mu birombe n’aho kubaka, bigatuma igihe cyo kwishyura kiba gito.
Igishushanyo mbonera cy’icyuma cyose gikozwe mu buryo buhuriweho bivuze ko cyashyizweho mu ruganda rwose. Aho gikorera, ongeramo lisansi kugira ngo gitangizwe; nta miyoboro cyangwa urufatiro bikenewe, bigatuma kiba cyiza mu gusana byihutirwa no kohereza vuba ahakorerwa by’agateganyo.