A more thorough explanation:

No fault is a legal term that means a claim or case is resolved without determining who is at fault. In a no-fault claim, the parties involved do not have to prove that anyone is to blame for the situation. This is different from a fault-based claim, where the parties must prove that someone was at fault to win the case.

• No-fault divorce: A type of divorce where the parties do not have to prove that one person was at fault for the marriage ending. Instead, they can show that the marriage has irretrievably broken down or that they have irreconcilable differences.
• No-fault insurance: A type of insurance where the insurance company pays for losses regardless of who caused them. This is often used in auto insurance, where each driver's insurance company pays for their own damages, regardless of who caused the accident.

These examples illustrate how no fault works in different legal situations. In a no-fault divorce, the parties do not have to prove that one person caused the marriage to end. Instead, they can show that the marriage is irretrievably broken down or that they have irreconcilable differences. In no-fault insurance, the insurance company pays for damages regardless of who caused the accident. This can make it easier and faster to resolve claims, as there is no need to determine who was at fault.