If you choose "this" you must choose one of "these"

[tanyapeila]

I've never had to do this in Access before and we don't "have" to do it but it would make less room for error.

I have a fields "shipline" and "county" in a form
If the user selects a specific shipline and county I want to force the user to then select "option 1", "option 2", "option 3", or "option 4" from a list.

Can anyone help me with this.

[pbaldy]

I'd use the before update event of the form:

http://www.baldyweb.com/BeforeUpdate.htm

with your test of course.