CFA declares the Fire Danger Period for each municipality (shire or council) at different times in the lead up to the fire season. It depends on the amount of rain, grassland curing rate and other local conditions.
The Fire Danger Period may be declared as early as October in some municipalities, and typically remains in place until the fire danger lessens, which could be as late as May.
The Fire Danger Period is NOT the same thing as a Total Fire Ban.
Your local council or shire may have their own local laws about lighting fires. Contact your local council to find out what municipal local laws may be in place. Local laws may be in place all year.