<<Disclaimer: Verify this information before applying it to your situation.>>

http://www.oatmatzah.com/

from the site:
<<We try to find strains of oats with the lowest possible Gluten content.
This year the gluten testing was performed on samples of the flour used for
oat matzos in year 2002, by Dr BM Bointion at the University of North London.
The results showed absence of gluten. The limit of the detection was 50 ppm
(parts per million). If you have any queries about the gluten analysis please
feel free to contact us>>

Also lists all of the US purveyors of the matzah.

:)
katherine in atl