In order to maintain data comparability, the 2017 CWS questionnaire will be largely the same as that used in 2005. However, because new types of work have emerged since the last collection of the CWS, BLS is proposing to add four new questions to the end of the CWS. These new questions will explore whether individuals obtain customers or online tasks through companies that electronically match them, often through mobile apps, and examine whether work obtained through electronic matching platforms is a source of secondary earnings.Through Nov. 29, BLS is seeking public comments on the plan.