Very little useful information was found on a national IT policy.

Censorship: (1)
One policy dating back to April 1996 (the year of the peace accords) stated that the government made private satellite or telecommunications links illegal. It further stated that the government alone would have unrestricted access to the internet, and that all information had to flow through them.
Though I feel certain that this policy has since been repealed, no specific mention of this was found. It could be the case that although it is still a law on the books, it is not enforced and hopefully will never be enforced, and will one day be removed from the books altogether, beyond as an interesting footnote in history.

On the website of the Guatemalan government there were several promising links to National IT Policies that ultimately lead to defunct sites.