2010—Pub. L. 111–256 amended section generally. Prior to amendment, text read as follows: “The Director of the Institute shall conduct and support research and related activities into the causes, prevention, and treatment of mental retardation.”

For meaning of references to an intellectual disability and to individuals with intellectual disabilities in provisions amended by section 2 of Pub. L. 111–256, see section 2(k) of Pub. L. 111–256, set out as a note under section 1400 of Title 20, Education.