This may have been asked before (sorry if it has). I have all the correct paperwork for JPA and also how to apply for it, but; 1. How far back can you apply for the allowance on JPA? 2 Can you claim for each direction or just the one claim? 3. Has the amount changed recently? I am only asking here as I have been told different things by different HR reps and am trying to get the even ground before submitting the claim.