1. Malo okhala ndi mvula yambiri, chinyezi komanso kupopera mchere wambiri.
2. Malo ogwirira ntchito ndi a chinyontho ndipo pali malo a nthunzi wa madzi.
3. Kutalika sikudutsa 2000m.
4. Malo ogwirira ntchito ali ndi fumbi losayaka monga mchenga ndi fumbi.
5. Malo ogwirira ntchito ali ndi mpweya wowononga monga ma asidi ofooka ndi maziko ofooka.
6. Yogwiritsidwa ntchito ku mafuta, mankhwala, chakudya, mankhwala, asilikali, malo osungiramo katundu ndi malo ena.
7. Amagwiritsidwa ntchito kufupikitsa kapena kulumikiza kagawo kakang'ono kameneka, ndikupereka malamulo mu dera lolamulira kuti azilamulira mayunitsi amagetsi monga ogwirizanitsa ndi ma relay.