Urwego rwa mashini ni igikoresho cyingenzi kubikoresho bitanga ingufu za moteri, bitanga ibyiringiro byizewe kandi bitaziguye byerekana urwego rwa lisansi. Uburyo bworoshye bwo kureremba burazamuka kandi bugwa hamwe na lisansi, bigatuma ibipimo nyabyo bidakenewe amashanyarazi. Iki gipimo ni ingirakamaro cyane kuri generator ahantu kure cyangwa habi aho sisitemu ya elegitoronike ishobora kunanirwa. Ubwubatsi bwayo bukomeye bwihanganira ibintu, kandi 1/2 'Urudodo rwa BSP rutuma rushobora gushyirwaho byoroshye kubigega byinshi bya lisansi, bitanga ibisobanuro byihuse kandi byihuse byerekana urugero rwa lisansi kugirango birinde igihe.