So I'm aware of examiner reports, which give an overview of the examiners POV while marking the papers.

However, I wanted to ask if there are any mark schemes available which the examiners use to evaluate if a certain answer has certain content/layout on the basis of which he should be awarded xyz marks.

Is there no standardisation? Do our marks solely depend on the examiner?

If not, then where can I find these MARK SCHEMES (for compulsory and optional subjects)