How do I submit new parts?

[Orion Pobursky]

I made .dat and tested it in stud.io. 
How do I submit it to ldraw.org?
On the parts tracker side under "submit" it just says:

Sorry, your userid (Wiktor) must have submit privileges in order to submit files.

btw, the part I made:
Motorcycle Chassis, Snowmobile 37496

You have to email the Library Admin, Chris Dee, at [email protected] for permission to submit.