FINRA recently approved a proposal that requires changes to the naming convention brokerage firms use for stop order types. FINRA Rule 5350 (Stop Orders) requires brokerage firms that trigger stop orders based on the quote (bid/ask) rather than the last trade (transaction) to rename the order types to distinguish how the order is triggered. Please note that this does not change how Scottrade triggers or executes your orders; it is simply a change to the naming convention for these order types.
As of January 16th:
Stop Order will be called Stop-on-Quote Order.
Stop Limit Order will be called Stop-Limit-on-Quote Order.
Trailing Stop Order will be called Trailing Stop-on-Quote Order