Is a statute that adds to or takes away from a statute considered an amendment?

A statute which adds to or takes away from an existing statute is considered an amendment. ( Franchise Tax Bd., at p. 776, 145 Cal.Rptr. 819, citing Robbins v. O.R.R. Company (1867) 32 Cal. 472.) Whether an act is amendatory ... is determined by an examination and comparison of its provisions with existing law. If its aim is to clarify or correct uncertainties which arose from the enforcement of the existing law, ... the act is amendatory, even though in its wording it does not purport to amend the language of the prior act. ( Franchise Tax Bd., at p. 777, 145 Cal.Rptr. 819.)