N.Y. LEG Law § 1-G

§ 1-g. Termination of retainer, employment or designation. Upon the\ntermination of a lobbyist's retainer, employment or designation, such\nlobbyist and the client on whose behalf such service has been rendered\nshall both give written notice to the commission within thirty days\nafter the lobbyist ceases the activity that required such lobbyist to\nfile a statement of registration; however, such lobbyist shall\nnevertheless comply with the bi-monthly reporting requirements up to the\ndate such activity has ceased as required by this article and both such\nparties shall each file the semi-annual report required by section one-j\nof this article. The commission shall enter notice of such termination\nin the appropriate monthly registration docket required by section one-f\nof this article.\n