Ram Trucks 2014 3500 - CNG Supplement - Manual (Page 55)

Retest dates must be marked on a label securely affixed to
the container and over-coated with epoxy near the origi-
nal test date. Reheat treatment or repair of rejected
containers is not authorized.
The fuel containers expire and must be removed from
service fifteen years from the date of manufacture. A label
on the fuel container states the first container inspection
date and container expiration date.
If there is a question about the proper re-inspection of the
CNG fuel container, contact the manufacturer as identi-
fied on the container label. 5
MAINTAINING YOUR VEHICLE 53