According to PSI, a VIP or VCI sticker should not state "...is valid for one year from date punched." The reason simply is because nobody can GUARANTEE one year. There may be a reason to condemn the tank prior to the one year expiration date.
The sticker should state "This tank and valve have been visually inspected to PSI, OSHA, and CGA standards on date punched." There are no guarantees that the visual will be good for 1 year or even 1 day.
The sticker should state "This tank and valve have been visually inspected to PSI, OSHA, and CGA standards on date punched." There are no guarantees that the visual will be good for 1 year or even 1 day.