Isilinganiso sokumelana nomlilo seminyango yensimbi yomlilo ihlukaniswe yaba izinhlobo ezintathu. Isikhathi sokumelana nomlilo se-Class A iminyango yomlilo yensimbi akufanele ibe ngaphansi kwamahora angu-1.5; isikhathi sokumelana nomlilo se-Class B iminyango yensimbi yomlilo akufanele ibe ngaphansi kwamahora angu-1.0; isikhathi sokumelana nomlilo se-Class C iminyango yomlilo yensimbi akufanele ibe ngaphansi kwamahora angu-0.5.

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