5. One-time transaction code keys5. One-time transaction code keys

5. One-time transaction code keys

For each registered applicant, the ACA will prepare a list of 'one-time' transaction code keys for use by that registered applicant only in authenticating its telephone bids should this be required in an emergency.

Each list will contain a minimum of 100 transaction code keys. No two lists will be the same. No two codes will be the same, except as generated by chance.

Each key will consist of 8 randomly generated letters. The case of the letters will not be significant to their use.

Each key will be used once, in the order in which the keys are listed. The ACA will retain a copy of each list and identify that list as having been issued to the registered applicant.