.SI is the Slovenian country level domain extension.
The .SI has a minimal of 3 characters, the maximum is 63.
Domainnames existing only out of numbers is allowed.
Domainnames are not allowed to start or end with a hypen (-)
Minimal length of period of registration: 1 year.
Transfer to other registrar possible, if you are the owner.
Transfer to other registrar with new owner, possible with permission of owner and receiver.
Change of owner address is possible.