The older certs were not in the database - back in 1970 there was not a database but records are on microfiche if you remember what those are. The older certs need to be added by hand and that is a slow process but if you have a card and do not show up on the database you can contact them and your record will move up the line and be entered so you can be verified on line. Any new NAUI certs are easily checked online.