If you are hell-bent on filing your own case despite the advice of all the attorneys on this forum that you need a lawyer's help, then you need to go read the statute. Cornell University maintains an online copy of the U.S. Code at http://www.law.cornell.edu/uscode/text. So go read section 522 and figure it out.
First, I'm not licensed in CO. With that being said, you should really go back and read those sections carefully. Colorado does not allow for the Federal Exemptions by state law. Therefore, 522(b)(2) can't be an option for you because it points you to subsection d which are the federal exemptions. Please reconsider filing bankruptcy on your own and hire a lawyer in your area familiar with the code and your states local rules. Good luck!
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You are going to have to check the box related to state exemptions which is the first box. Colorado is an opt out state and therefore the federal exemptions do not apply. What exactly is exempt under Colorado state law I am not sure. You need to read the state statute carefully.