The law 990/1969 requires that each motor vehicle or trailer standing or moving on a public road have third party insurance (called RCA, Responsabilità civile per gli autoveicoli). Historically, a part of the certificate of insurance must be displayed on the windscreen of the vehicle. This latter requirement was revoked in 2015, when a national database of insured vehicles was built by the Insurance Company Association (ANIA, Associazione Nazionale Imprese Assicuratrici) and the National Transportation Authority (Motorizzazione Civile) to verify (by private citizens and public authorities) if a vehicle is insured. There is no exemption policy to this law disposition.
The 12-month policy will generally start on the date that the last car insurance is up for renewal, with short-term cover used to protect the other cars in the interim. For example, if you have one car that needs to be insured from February and another in June, the February car will be insured first but the policy will actually renew in June when both cars are covered. After the last car has been insured for a full 12 months, the policy will renew each year until you choose another policy.
Liability auto insurance protects you from that worst case scenario by providing a cushion between your assets and the amount you’re on the hook for. For this reason, choosing the right auto liability limits is the most important part of your car insurance quote comparison. NerdWallet typically recommends having at least as much liability coverage as your net worth.