How many times can you ask your employer to pay for your PE exam and study materials?

[richstewart]

How many times it is reasonable for an employer to fund failed PE exam attempts?

 

[pgheng]

Usually once, if you're lucky it's pass or fail; if not lucky it's only if you pass.
If it's pass or fail, and you fail, and get another job, then the next employer may pay for another attempt.
In any case, I don't know of any employer who will pay for you to take the same exam more than once.