42 U.S.C. § 16616, 16617
Section 16616, Pub. L. 109–155, title I, § 108, , 119 Stat. 2913, which related to commercialization plan for missions to the Moon and Mars, and required plan submission to Congress not later than 180 days after , was omitted from the Code following the enactment of Title 51, National and Commercial Space Programs, by Pub. L. 111–314.
Section 16617, Pub. L. 109–155, title I, § 109, , 119 Stat. 2913, which related to study on the feasibility of use of ground source heat pumps and required study transmission to Congress not later than one year after , was omitted from the Code following the enactment of Title 51.