http://www.finra.org/sites/default/files/Regulatory-Notice-16-21.pdf
"An associated person who is (i) primarily responsible for the design, development or significant modification of an algorithmic trading strategy relating to equity, preferred or convertible debt securities; or (ii) responsible for the day-to-day supervision or direction of such activities, may register voluntarily as a Securities Trader beginning on the date of this Notice and must be registered as a Securities Trader beginning on January 30, 2017."
"An associated person who is (i) primarily responsible for the design, development or significant modification of an algorithmic trading strategy relating to equity, preferred or convertible debt securities; or (ii) responsible for the day-to-day supervision or direction of such activities, may register voluntarily as a Securities Trader beginning on the date of this Notice and must be registered as a Securities Trader beginning on January 30, 2017."