I believe it is chip and signature... I got mine from Bank of America... no pin necessary when the chip is used (and it still has the magnetic strip for stores that don't have chip readers).
There was a period where it was a guessing game every time you paid for something whether it was magstripe or chip (some locations even had a chip-capable machine, but didn't have the service enabled with their payment processor, so you still used the magstripe...).
It's pretty consistent now.