What are the Regulations of Fia about safety ?

When Al-Qassimi drove his Ford Fiesta S2000 for two stages with broken front glass In the latest rally of sharqia " the third round of middle east rally championship " .

the organizations committee prevented Al-Qassimi to continue the rally for the last reason " the broken front glass of Fiesta " .

so, is this decision of organizations was right , and What are the Regulations of Fia about safety ?