If you didn't mean what @derpatrick9 said above, you probably mean our Forum Moderator/Support/Game Moderator ranks.
In order to get those ranks, you would have to try your best to be active on the forums and to get selected in a recruitment for a specific team.
Recruitments can be found here: https://truckersmp.com/recruitment
Please remember that being active on the forums doesn't mean you can just make a status update every day, as that doesn't count towards the activity we're looking for.
By activity we mean: Making posts/Helping out in Help-Section etc. However, if you make useless posts you can and will be warned for it.
If you have warnings, you could still be accepted into the team though.