2. Ntugomba kohereza ibicuruzwa wenyine, kandi ntukeneye kugura ibikoresho wenyine, gusa utwoherereze mugihe ufite itegeko;
3. Nta karimbi kangana n'umubare w'ibyo waguze;
4. Serivisi nyuma yo kugurisha iremewe, niba hari ikibazo cyiza, ushobora kutwandikira tugufasha kugikemura;