What is the difference between these two services?

I’m trying to book an appointment for the written portion of my drivers license test for a week from today. On my local DMV’s website, there are a few different options for the type of service I’m looking for, two of which are: First Time U.S. License and Learner’s Permit.

When I choose the former, it says that there are no times available for booking, but when I choose the latter, I have my pick of appointment days/times.

Is there a difference between the two? I’m assuming that, since they’re listed separately, they’re two different types of services, but would it matter if I chose Learner’s Permit instead of the other option?

I’ve looked all over the website, but there’s no clear differentiation between the two, unless I’m missing it.

Your assistance will be greatly appreciated! Thank you.

Here’s the appointment booking website to which I’m referring.