The maximum percentage of the value of securities that a broker can lend to a margin account customer, as dictated by the Federal Reserve Board in Regulation T.
The amount a policyholder may borrow against a whole life insurance policy at the interest rate specified in the policy. 
The maximum percentage of the value of securities that a broker can lend to a margin account custome
the highest amount of money that can be borrowed against a life-insurance policy, based on the cash value of the policy.