Gonna try to get hazmat endorsement Florida what do I need

So i currently have my Doubles/Triples and Tanker endorsement

So im aware of the ELDT requirement course ahead of time (how long does that take to be submitted to DOT and does the course submit or do I have to call or email to DOT?)

I already have my tanker endorsement so is the hazmat tanker a seperate thing? (X) endorsement? Is hazmat test just for general hazmat freight and hazmat tank is seperate?

Does that just combine the tanker and hazmat like ive been told and both are good or is it just for hazmat tanks? Im confused on the whole thing and wanna make sure my ducks are in a row before I even walk in the door sorry if it seems stupid theres not a ton on it and i want clarification to make sure im doing it right before I even go in the door

 

I heard TWIC card knocks down the background check to $41 (not for sure how accurate that is but still) what ive calculated with the addition of changing my license to update and show endorsement $131

I got my passport, TWIC, CCW so i should easily clear the ok


Definitely my end goal trucking is to move up to hazmat tank and stick somewhere, already love tanker freight, plus jobs already dangerous cant get much worse and i drive safe as possible so why not