It is not on Apple official website, but we found the information on the web that we can get the development guidelines once the CarPlay development application passes.
However the information is as old as 2016 and may have changed, so please let us confirm.
Question 1:
If CarPlay development application is accepted, can we still get the development guidelines?
Question 2:
Do the development guidelines include the information (*1) required to develop a CarPlay application?
(*1)
ex1. I/F information required to develop Audio/Navigation/Automaker App
ex2. Sample code and implementation example