2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185638This paper analyses the Noether symmetries and the corresponding conservation laws for Chern-Simons Lagrangians in dimension $d=3$. In particular, we find an expression for the superpotential of Chern-Simons gravity. As a by-product the general discussion of superpotentials for 3rd order natural and quasi-natural theories is also given.16 pages in LaTeX, some comments and references added. to appear in Journal of Physics A: Mathematical and GeneralHigh Energy Physics - TheoryGeneral Relativity and Quantum CosmologyMathematical Physicstext