Adding an endorsement in California

Hello everybody,

I hope I'm posting this in the right spot. I have my CDL Class B and last July I added my tanker endorsement and now I'm interested in adding my HazMat endorsement to open more doors.

If it's been less than a year since I added my last endorsement can I just take the Hazmat endorsement test and not the rest of the tests? I thought I read if you want to add an endorsement less than 12 months from renewing your CDL or adding an endorsement you only have to take the one test.

I hope my wording makes sense. Any information would be great.

Thanks!

 

Sorry, I think I worded my post a little funky. What I'm trying to say is if I go to the DMV to add my HazMat endorsement will I have to take the general knowledge, air brakes, tanker tests again?

 

Thanks for the reply. Man, that's kind of a bummer. I guess it makes sense though. I was just hoping to not have to take all those tests again haha.
I thought I read somewhere that if it's been less than 12 months since taking all those tests and you were trying to add another endorsement that you would only have to take the test for that specific endorsement, but that could have been completely wrong.

 

So I went by the DMV today and the lady told me that since it's been less than a year since my renewal and adding my tanker endorsement that I should only have to take the Hazmat endorsement test and not the rest of them. If it was over a year I'd have to take them all.

So my next question is, How many questions is the HazMat endorsement test? Do most people pass it first try?