Bridging visas are temporary visas that allow individuals to remain in Australia lawfully while they are waiting for a decision on their substantive visa application or while they are making arrangements to leave Australia. The different types of bridging visas available in Australia include:

1. Bridging visa A (BVA): This visa is granted to individuals who have applied for a substantive visa while they are in Australia and their previous visa has expired. BVA allows the individual to remain lawfully in Australia until a decision is made on their substantive visa application.

2. Bridging visa B (BVB): This visa is granted to individuals who hold a BVA and need to travel outside Australia temporarily while their substantive visa is being processed. BVB allows the individual to return to Australia and continue to stay lawfully while their substantive visa application is being processed.

3. Bridging visa C (BVC): This visa is granted to individuals who are in Australia without a valid visa and have applied for a substantive visa. BVC allows the individual to remain lawfully in Australia while a decision is being made on their substantive visa application.

4. Bridging visa E (BVE): This visa is granted to individuals who are in immigration detention or have overstayed their previous visa. BVE allows the individual to remain lawfully in Australia while they make arrangements to leave the country or while they wait for a decision on their immigration status.

The requirements and eligibility criteria for each type of bridging visa can vary, and there may be conditions attached to the visa. It is important to carefully review the requirements and seek professional advice before applying for a bridging visa in Australia.