Wheres the TWIC number located, and when does HAZMAT expire?

I'm filling out some job applications now and getting some questions I'm not sure about.

Can anyone tell me where to find the "TWIC Number" on the twic card? Is it the long number with dashes xxx-xxxx-xxxxxxx, or one of the others?

Also, how do you know when your HAZMAT expires? I went into the office to start the TSA process on 11-3-2014, I got a status update on 11-5-2014 saying determination was made, I got a letter dated 11-6-2014 saying I met the requirements. There is nothing on my CDL hard copy or the TSA letter indicating an expiration date for the HAZMAT. I cannot find a straight forward answer searching TSA website for either of my questions.

 

The only dates on my CDL back is the birthdate and a revision date. Neither anywhere near the list of endorsements

Mine has two sets of 8 digits. They are spaced about 1 1/4" apart and the sets of numbers are different. Is it all 16 of them then?

I thought you had to renew or take the test every two years? That's was one of the questions on the DMV test

Do you get a letter or something that tells you your hazmat is expiring the way you get drivers license letters?

 

The letter was dated the 6th but I didn't receive it until like 13-14th of the month. The website status update though changed over on the 5th. It said eligibility determined, but gave no other information. After getting letter, I called DMV to get my CDL released and was told it was shipping out on Friday. I received it in the mail the same day I called them about it. I was quite surprised that the entire process moved as quickly and smoothly as it did. Overall it was fast and easy to take care.
I never received a letter for the TWIC. I did get an email, but the TSA website still shows "processing" even though I picked the card up today. One complaint I do have is I had to drive 2.5 hours each way to pick up the twic, mailing wasn't an option. At least it was a drive down the coast on a beautiful day though.