Users interested in joining the Beatmap Nominators need to go through an application process overseen by the Nomination Assessment Team (NAT).
Applications are conducted via the BN website.
Applicants are required to meet a minimum kudosu threshold, and submit three beatmaps they have recently modded, alongside answering certain questions regarding them. A message from the NAT will be sent once a verdict has been decided. More information on applying can be found on the website.
Modders aiming to apply to the Beatmap Nominators must:
See also: Common modding mistakes and osu!mania modding guide
Submitted mods should show that a user is capable of recognising beatmaps that should and should not be nominated, alongside analysing and improving beatmaps to a standard fit for the Beatmap Nominators.
The following are modding traits expected of Beatmap Nominators:
Flowchart outlining the Beatmap Nominator application process
Users are required to submit three beatmaps they have modded within the last 6 months, each having a different host.
It is good practice to preserve and submit a copy of the map before the mods are applied, as that will notably aid with the evaluation of their modding by giving better context to the evaluators.
Additionally, applications can be marked as available for the public, which will make it appear in the public evaluations archive. Users can freely opt in and out of this by changing the visibility status of any evaluation they have in their evaluations page.
When a user applies to become a BN, the NAT will be notified via the "bnsite" Discord bot in their respective Discord channel. The notification will include the applicant's name and evaluation link, as well as which evaluators have been assigned to the application.
A progress bar in the application page details what step their evaluation is currently in.
Application progress bar
Evaluators can then review the full application on the BN website, which includes any information the applicant submitted, as well as a historical record of past evaluations if the user has applied to or has been a BN previously.
Evaluation is broken into two stages: individual and group.
During the individual stage, lasting at most 7 days, 3 evaluators are randomly assigned to the application. Sometimes, BNs are invited to act as evaluators, but there will always be at least one NAT assigned.
The evaluators will look over the application and evaluate the applicant's modding performance and behaviour. They will typically note down any positive and negative posts in the mods. Each evaluator will then vote "pass", "neutral", or "fail" for the application.
Applicants will be evaluated on the following criteria:
Any comments and votes from evaluators at this stage are hidden from other evaluators.
The group stage lasts at most until 14 days after the applicant sent in their application, which progresses to this stage when either:
At this stage, the comments and votes from each evaluator are revealed to the other evaluators, and in the case of an ambiguous verdict, they will discuss until a consensus is reached.
Additional feedback is then written to add any missing information from the evaluators' comments and the application result is sent back to the applicant by the Nomination Assessment Team bot as an announcement message, after which the evaluation will be archived for future reference. Successful applicants are added as a probationary BN immediately after the result is sent.
When an application is completed, the applicant is provided with an interface that allows them to chat with the evaluators directly through the BN website in order to ask any questions regarding their application consensus and the evaluators' comments.
The chat is automatically locked after 7 days of inactivity.
The feedback chat interface
A cooldown for reapplying of 60 days is set on the following occasions: