There are five main classes of insurance and reinsurance business: marine, non-marine, motor, aviation and term life insurance. The market rules that previously prevented marine underwriters writing more than one class of business have been abolished. However, the premiums and claims relating to term life insurance must be kept separate from those relating to other classes of business and the rules of the Financial Services Authority (FSA) prohibit a syndicate writing both general insurance and long term insurance as defined by the FSA. Term life may constitute long term insurance.