From the "Potential State Tax Exclusions from Governmental Obligations" where do I put the "Exclusion Amount" on the Colorado State Income Tax form?

You don't.  You enter interest or dividends from government obligations in the federal interview as you enter the interest and dividend.  There will be a point in the interview where it asks about whether any of the interest or dividends are from gov't obligations, and then takes you to a screen to enter the amount.

I do that but it is not being allowed on the CO state form

@Shingle

 

What does "it is not be allowed on the CO state form" mean?

 

You entered the interest or dividends on the federal return, right? Then when you went to the CO state interview, you saw the screen "Here's Income that Colorado handles differently", right?

 

What happened when you went down to the subheading "Investments"? Did you pick one of the four subcategories.

 

In short, what were you doing to make you say that "it was not being allowed on the CO state form"? Specifically, what was not being allowed?