Wikipedia:CVUA

Experienced (or trainers in this instance) can "adopt" newer users, mentoring them along the way as they learn about Counter-Vandalism. It is hoped that this program will be able to inform new users about the ins and outs of vandalism and steer them away from making errors in the use of tools and incorrectly identifying vandalism.

If you are interested in a (sort of) quick guide first, do check out the Anti Vandal centre - you'll see what you're really letting yourself in for!

If you are looking to but do not intend to remain active in vandalism reversion, then this program is not for you. C-V training is for users who intend to be long-term contributors and members of the community, so if you are simply here to work towards obtaining permission to use various tools that you will not regularly employ, see this page for help instead and do not request training.

Users who are neither new nor inexperienced – but who would still like to help maintain the quality of the encyclopedia might like to consider Patrolling New Pages instead - an essential function that requires a high degree of knowledge of Notability Guidelines and Deletion.

Learning about Counter-Vandalism is easy and fun. If you'd like an experienced user to show you how, simply choose an active trainer from the list who is in your time zone and leave a message on their talk page.

Your chosen trainer should share your interests so that they can comfortably assist you while you learn under their tutelage. For more information on what you will be expected to learn, visit the Syllabus section.

If you are an experienced user and have time to devote to being a trainer, visit the Trainers' resources section where you will find the minimum requirement for trainers, recommended practice, and teaching suggestions and examples. You may then wish to add yourself to the list of active trainers taking note of the page source comments.

You will be interested to know that occasionally some candidates for training may be university professors taking part in the

If you're new and/or inexperienced, before embarking on a Counter-Vandalism training programme, you should be able to demonstrate that you have already mastered the basic principles of editing the encyclopedia and contributed at least 200 edits to MAINSPACE. If you have previously been warned or requested to follow guidelines, you should have demonstrated that you have addressed these issues.

...
Wikipedia