Nondisclosure is not near as good as an expunction, but it is still pretty good. A nondisclosure order is an order by a judge that prohibits government agencies from sharing criminal history information with anyone outside of the government. For example, if you obtained a nondisclosure order for a possession of marijuana case, then the officer that stops you for speeding will always be able to see it, but your private employer would not be able to see it, and you would not have to reveal it when applying for a job for example. If you think of a criminal history as a black spot on your record, an expunction completely cleans the spot away and it is no longer there. A nondisclosure order is like a patch used to cover the spot. The government can always look under the patch, but no one else can.