Why there are five white boxes in front of the Career Transition and the non-career advances on the character sheet?

And,the characters can keep advance points and spend them whenever they want.Right?

Thanks!

Because you can spend up to that many advances to get that career transition or non-career advance.

Correct! Your Experience Points may be different from your Advancement Points if you are saving up to say spend four to transition to a new career, or need five of them to increase a non-career stat from 3 to 4.

I think I must be missing something under what circumstances would a career transition ever cost more than four advances?

All the modifiers I can see (Reiklander Adaptable ability, fully completed prior career, career-trait similarities) serve only to reduce the base transition cost of four advances; are there any modifiers which can increase that cost?

I suppose if they ever print careers with more than 4 traits.

Doc, the Weasel said:

Can't remember right now, but I actually think the PG states that the base cost is 4. Even with 5+ traits it would still be 5. Perhaps some careers will have a disadvantage of costing an extra advance though.

Thanks for the replies. I agree there may be some mechanic (or certain careers) in later supplements that cost extra advances to enter just wanted to double-check I hadn't missed something obvious in the existing rules that might push the cost up to 5.