Not natively.
You might be able to build in code that checks the last time they changed
the password and prompt them, but there's no guarantee that it wouldn't be
possible to get around that.

Signature
Doug Steele, Microsoft Access MVP
http://I.Am/DougSteele
(no private e-mails, please)
>I have developed a Db for my work in a hospital where we have a turn over
>of
[quoted text clipped - 5 lines]
> Thanks for your help,
> Ian.