What must be done for clock synchronization according to OATS requirements?

The requirement for clock synchronization according to OATS (Order Audit Trail System) mandates that firms must synchronize their clocks with a reliable time source. This ensures that all timestamps on orders, executions, and other relevant data accurately reflect the same time standard, which is crucial for effective monitoring and auditing of trading activities.

Using a reliable time source, such as the National Institute of Standards and Technology (NIST) time servers or similar authoritative timekeeping services, helps maintain consistency across all records. This synchronization is vital for compliance with regulations and for maintaining the integrity of data tracking.

Other methods, such as simply syncing clocks with the nearest time zone, compiling time records weekly, or making adjustments monthly, do not meet the stringent accuracy and reliability requirements set forth by OATS. These alternatives could result in inconsistent or inaccurate time stamps, which could undermine the validity of the audit trail. Therefore, synchronizing with a reliable time source is essential to adhere to these regulatory standards.