Talking with some friends, there seems to be confusion about a reserve's duty period. In Sec 12B, Duty Period Limitations, seems as if only trips, deadheads, and standbys are addressed.

The question Im trying to answer is when does a reserve's duty period start? A) Start of reserve period.
B) Start of show time of assigned pairing?

Second part...how long is the duty period (12C4,5)(?)

Finally...where in the contract is this covered?

Thanks,
FNG