ተገቢውን ደረጃ በሚያሟሉ ደህንነታቸው በተጠበቀና ደህንነታቸው የተጠበቀ በሚመስሉ ምርቶች መካከል ያለውን ልዩነት መንገዘብ ጠቃሚ ነው።
It is important to distinguish between products that meet standards, that are safe, and those that merely feel safe the highway safety community uses these.