If you want to reach the SDC by car, you have to:

Take the via Tiburtina, direction Tivoli (opposite to direction Rome) then after the G.R.A. (Grande Raccordo Anulare) follow the map.

If you want to reach the SDC by public transportation, you have to:

Be very patient!
Catch the metro line B (blue line, direction Rebibbia) and get off at the last stop (Rebibbia)
Take bus number 040 or 041 (the bus stop is immediately outside the metro station at the top of the stairs to the right)
If you catch the 040 you should get off at the Settecamini Post Office (Ufficio postale di Settecamini) then follow the map.
If you catch the 041 you should get off at the via Affile bus stop just after the Gentilini Firm of bisquits. Then follow the map.

Our Address:
SAX-SDC
c/o Nuova Telespazio
Via Corcolle 19
I00131 Roma, Italy
telephone +39 6 4079 6307