I have never taken a special VFR clearance yet. My understanding is you can get a special VFR clearance to get out of an airport when the weather is below VFR. I fly out of an airport that only has a GPS approach. However, just 7 miles south straight along the freeway is another Class D airport with a VOR/DME approach for our non-RNAV airplane, with minimums down to 460 feet. The problem is we get fog a lot, and the ceiling can often be 700 or 800ft. Obviously flying 500ft off the ground and staying 500ft below the cloud deck is impossible. So I am trying to figure out safe, and legal ways to get back home when the weather is like this. But I am sort of confused about the regs. Can I get a special VFR clearance in this case? Where is special VFR valid? Only in terminal airspace, or controlled airspace? Do you need to be in radio contact while on a special VFR clearance? The two class D airspace's are not connected (about 2 miles separated between the outer bounds). Is this class G airspace where I can just be clear of clouds? There is technically an RNAV approach just above and to the west of the area I would be flying. (However, because of the proximity of the two airports, they only allow one IFR approach or departure at a time, so if I shot the VOR/DME approach to the first airport, no one would be on the GPS approach until several minutes later. ) The airports in question are Palo Alto (KPAO) and San Carlos (KSQL). http://www.airnav.com/airport/KSQL Safety wise, the area is very flat at sea level (which is why the approach gets you down to 460ft). No major obstacles along the freeway connecting these two airports. Whenever you transition between the two airports, people only fly at 800ft (pattern altitude for the two airports). So it gets flown all the time. I am instrument rated, and if i were to suddenly go IMC, I would make a right turn out over the bay (1 mile east), start climbing, and call approach for an IFR clearance. I am not concerned about it being a safety issue if I can fly at 800ft AGL and clear of clouds, just a legal issue now. What do you think? Thanks a lot.