Here is the actual law that was passed last year which says that employers need to make accomodation for breastfeeding moms to be able to pump at work (NOT) in a bathroom!.
http://www.state.co.us/gov_dir/leg_dir/olls/sl2008a/sl_106.pdf
The Colorado Breastfeeding Coalition also has a fact sheet for moms who are returning to paid work.
