This document is a tax return form for California's nonadmitted insurance tax. It provides instructions for calculating taxes owed on insurance premiums paid to insurers not authorized to conduct business in California. The form includes sections to enter the taxpayer's information, identify the tax period and insurance contracts, compute the tax amount, and make payments or claim refunds. It also provides directions on filing amended returns, payment due dates, and authorizing a third party to discuss the filing with the tax agency.