A special reserve requirement for Eurodollar rate loans which was in addition to the general capital adequacy requirements. This requirement was used to calculate the interest rate payable on Eurodollar rate loans and is set out in Federal Reserve Regulation D for "Eurocurrency Liabilities." This requirement has been zero for the past several years. The Eurodollar rate/USD LIBOR has been phased out as a reference rate.

For more information on Eurodollar rate loans, see Practice Note, What's Market: LIBOR Interest Rate Provisions.