Comu addivintari n'amministraturi?
First, consider whether becoming an administrator is the best way for you to contribute to the project. Experience shows that outstanding contributors of content often reduce their contributions because of the maintenance overhead after they become admins, and this is what we want least. So please contribute your best skills and understand that there are many ways of getting community credit besides being an admin. Admin status on Commons is not an honour for outstanding content contributors, but just provides an additional set of tools for people who show that they want to clean up.
Consider whether you actually need the admin tools for the work you would like to do. The community does not hand out the tools to those who do not need or who are not likely to make use of them. So, if you need the tools only for a limited period, or in order to clean up your own contributions, please simply ask an existing admin to help you out.
Admins are expected to remain reasonably active here, and if after appointment you cease to use the tools for an extended period you will automatically lose them under our de-admin policy. You should expect as an admin to make yourself available on Commons to a reasonable extent (a userpage that asks people to leave messages for you on some other project is not considered acceptable practice for an admin).
More information about the administrators' community roles can be found at Commons:Guide to adminship.
We do not have any hard and fast rules setting out the minimum period you should have been active on Commons in order to apply for adminship, nor any minimum number of edits. However, the requirement that you be an experienced and trusted member of the Commons community typically means that prior to applying you should have had sufficient breadth and depth of experience here to be able to demonstrate that. If you are an admin or an experienced user on another project, by all means mention that, but bear in mind that off-Commons experience is on its own not normally enough.
Although not mandatory, it is often a good idea to talk to existing admins to get feedback about your experience and approach. You may be able to get another admin to nominate you, although self-nominations are also allowed.
When you request adminship, the community will consider your ability to fill the admin role. Individual Commons contributors may have varying expectations of candidates, and you may wish to review some archived applications to get a sense of what people are looking for. As a practical matter, users often want to see a reasonable level of involvement in admin-type activities such as deletion requests, accurately tagging images as copyright violations, new user patrolling, and so on. Users often want to be satisfied that you are an integral member of the Commons community and will look at the way you interact with others, on user talk pages and elsewhere.
The public discussion and vote
Adminship nominations remain open for at least seven days, for votes and comments, unless withdrawn early as unsuccessful. The period starts when you posted your nomination (if a self-nom) or when you posted your acceptance (if somebody else nominated you). At the end of that period the nomination will be closed by a bureaucrat who will either grant or decline promotion. The nomination may be left open for more than seven days, or a longer period specified, should a bureaucrat consider that desirable.
As a guideline, promotion normally requires at least 75% in favour, with a minimum of 8 support votes. Votes from unregistered users are not numerically counted, although such users may still offer their opinions on the candidate. However, the closing bureaucrat has discretion in judging community consensus, and the decision will not necessarily be based on the raw numbers. Among other things, the closing bureaucrat may take into account the strength of any arguments presented and the experience and knowledge of the commenting users. For example, the comments and votes of users who have zero or few contributions on Commons may at the bureaucrat's discretion be discounted.
If the nomination is successful, the closing bureaucrat will grant the applicant admin rights.
The request for adminship
When you are ready, make sure you have a userpage, enable email in your preferences, then apply, or ask your nominator to apply, back on the main Commons:Administrators page.