he main qualities of an orthodox currency board are:

• A currency board's foreign currency reserves must be sufficient to ensure that all holders of its notes and coins can convert them into the reserve currency (usually 110–115%).
• A currency board maintains absolute, unlimited convertibility between its notes and coins and the currency against which they are pegged, at a fixed rate of exchange, with no restrictions on current-account or capital-account transactions.
• A currency board only earns profit from interest on reserves (less the expense of note-issuing), and does not engage in forward-exchange transactions.
• A currency board has no discretionary powers to effect monetary policy and does not lend to the government. Governments cannot print money, and can only tax or borrow to meet their spending commitments.
• A currency board does not act as a lender of last resort to commercial banks, and does not regulate reserve requirements.
• A currency board does not attempt to manipulate interest rates by establishing a discount rate like a central bank. The peg with the foreign currency tends to keep interest rates and inflation very closely aligned to those in the country against whose currency the peg is fixed.