California Proposition 218, passed in 1996, is a constitutional amendment that limits the ability of local governments to impose taxes and fees. It requires voter approval for any new or increased taxes on property, ensuring that residents have a say in how their tax dollars are spent. This measure was designed to enhance taxpayer protections and promote transparency in local government finances. The proposition also mandates that local governments provide clear information about the purpose of any proposed tax or fee increase. Additionally, it establishes guidelines for assessing property taxes, ensuring that they are based on the property's market value rather than arbitrary rates.