We recommend that you photocopy the Standardized Colorado MOST Form, 2-sided, onto Wausau Astrobrights(R) Vulcan Greenâ€ť or Terra Green 65-lb. (cardstock) paper. This paper is available at many local office supply and online retailers.
Here are a few sources:
Amazon (Vulcan Green)
Staples (Vulcan Green)
Office Depot/Office Max (Terra Green)
The Paper Mill Store (Vulcan Green)
Office World (Terra Green)
Paperworks (Vulcan Green)