Under the CCPA, the treatment of cookies differs per type of cookie. For a website to properly function, essential cookies are required. Therefore, it is not required to offer the possibility to opt-out for essential or necessary cookies. So visitors don’t have to be allowed to disable essential cookies, but it is advisable to provide disclosure of their use.
Then there are functional cookies. These can have multiple functions, web tracking could be one of them. Part of them could have influence on the performance of the website. And others can be optional. Website are required to have the ability to opt-out for some of these functional cookies. A clear description of all types of cookies being used should be easily visible for the visitor. For any cookie that is not necessary for the website to function there should be an opt-out possibility. These types of cookies can be third party cookies or first party cookies. The CCPA letter is not specific. However, clear disclosure is implied. Disclosure includes the ways in which cookies collect data, use data and the possibility to opt-out for unnecessary cookies.
It is clear that advertising cookies fall within the non-essential categories of cookies. It can be about third party cookies or first party cookies. The CCPA requires the ability to opt-out for this type of cookies. A cookies name and purpose should be clearly disclosed.