Originally Posted by Flyer2000

Passports are no longer required by TSA. Prior to September of '07 passports were required by TSA because pictures were not yet required. After pictures became required TSA dropped the passport requirement. Unfortunately, most carriers had incorporated the passport requirement into their Ops Specs, which makes passports required by the FAA. In some cases the passports are not in the Ops Specs, but because the info is given in the screen data the agents assume it is required.

Alaska Airlines (and Horizon I think), not only require a passport for CASS, but also require CASS for the cabin (if you are a CASS carrier). It is tied into their JAX(sp?) system, and will deny a jumpseat to anyone coming up "denied" in CASS.....even if it is for a cabin seat....unless something has changed recently......I don't work for Alaska, so maybe someone who does can speak to this subject better.

The bottom line is carry your passpost to be safe, but CASS, and TSA no longer require a passport.