There has been some confusion about how packaging specification markings should appear. The examples given in the CFR illustrate one of several ways the markings can be applied. Therefore, the markings can be applied in a straight line; on multiple lines; with or without the slash between the various segments. What matters is that the information is in the correct sequence. Also, UN certifications are valid for a one year manufacturing period. After 12 months, retesting and issuance of a new certification is mandatory.

There has been some confusion about how packaging specification markings should appear. The examples given in the CFR illustrate one of several ways the markings can be applied. Therefore, the markings can be applied in a straight line; on multiple lines; with or without the slash between the various segments. What matters is that the information is in the correct sequence. Also, UN certifications are valid for a one year manufacturing period. After 12 months, retesting and issuance of a new certification is mandatory.