Limits on contributions

[ssynat]

1. State limit for contributions to 529 is $430,000
2. Market value of account is $500,000.
3. Client has contributed $400,000.

Q: Can he contribute another $30,000?

[dcandmc]

If the plan language clearly states that a maximum of $430k in contributions can be made, yes.

If the plan language states that once the account balance has reached or exceeded $430k no more contributions can be made, no.

What plan is it?