I received this email the other day, probably as a response to something I had written... somewhere.  It was regarding who can administer a standardized test in GA.  Here is the question and my answer:

Question: In the state of Georgia can the parent administer the nationally standardized test to their homeschooled child ?

Answer: Yes, some think that you can't do that (test your children yourself) in GA, but it is up to the test administrator to decide who must issue the test so if you want to teach your child yourself, you need to find and organization that will let you administer it yourself.

From GHEA.org

Georgia’s Home Study law (GA Code Ann. 20-2-690-(c)(7), requires that children take a national standardized achievement test every three years, beginning at the end of the third grade. These test scores are NOT to be submitted to public school authorities, but are only to be seen and kept on file for at least 3 years by the parents. There is NO exit exam required of home school high schooled students to graduate.

The teaching parent may use any nationally normed standardized test. The testing companies set the rules as to the qualifications of the person administering the test and under what circumstances the test should be given. The home schooling parent is responsible for the cost of the test and having their children tested. The state does not provide this service.

I have used the administered the CAT to my kids, through Family Learning Organization, who sends me the tests to administer (we can only keep them for a few days). I send the tests back and they send me the scores. I stopped testing at 7th grade as the kids are in high school now, and take CLEP SAT and other standardized tests.