CFR /  Title 20  /  Part 404  /  Sec. 404.1510 Meaning of substantial gainful activity.

Substantial gainful activity means work that--

(a) Involves doing significant and productive physical or mental duties; and

(b) Is done (or intended) for pay or profit.

(See Sec. 404.1572 for further details about what we mean by substantial gainful activity.)