Introducing and executing brokers are responsible for reporting the LTID information for the accounts of their clients, where they have reported New Order Events of that client to CAT and the account has an LTID.  For introducing and executing brokers who are self-reporting to CAT, clearing brokers should provide LTID information to those introducing and executing brokers to facilitate the timely and accurate reporting of such information.  For introducing and executing brokers who are not self-reporting to CAT, the clearing broker or any other CAT reporting agent might be engaged to report on their behalf.