Use a common-sense approach. You do not have to insure that no-one who would affirmatively try to look in to see information could possibly see that information. One agency told us about a product called “Insta-Cling – Limo Dark” from Wal-Mart at $11.00 per box. It is a gray plastic film that clings to the window. This would certainly be a reasonable safeguard under the Privacy Rule. This suggestion comes from Human Development Services
