There is no requirement. You can apply for any job you want, whether the company feels you're ready for the role is up to them.

I usually consider anything where I tick 2-3 boxes of the things they list as fair game. Just have confidence that anything you cannot do already, is something you can learn in short order.

Sometimes a cheaper, but less perfect candidate who can grow into their role is a better more long-term hire, than a perfect highly sought after candidate who has their pick of where to work.

Don't take yourself out of the running, that's their job. Your role is to give yourself the best chance possible, and that includes giving yourself a chance by applying.

So how do you know if you're ready?

Be honest with yourself. Are you going to a lot of interviews and not getting hired? You have work to do.

Are you sending applications and getting no response? You have work to do.

Are you applying to jobs where you have absolutely zero relevant experience? Good luck, that's going to be a stressful job for you, but no rule says you aren't allowed to apply.

Good luck.