Cryo-Hauling/The Interview Process

Hello Everyone:
After three years of driving experience, I've decided to leave my position in LTL and apply for a cryo-hauling position ar Airgas.

For those who already gone through it themselves, the question to be asked is what's to be expected throughout the interview process. For example, the length of the process, what should I be expected to wear to the interview, material and information relevant about myself that should be brought and questions that I should expect to field from the interviewer?

I'll be interested to know if there's anything else that I should consider knowing prior to interview.