Technician A says that CNG cylinders must be removed from service 15 years after the date of manufacture in the USA. Technician B says that minor repairs are allowed on CNG cylinders in the USA. Who is correct?

Question

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CNG cylinders must be removed from service 15 years after the date of manufacture in the USA, as stated by Technician A. Technician B is incorrect because only authorized facilities are allowed to perform repairs on CNG cylinders, and only major repairs are permitted. Minor repairs are not allowed.

Technician a Says That CNG Cylinders Must Be Removed from Service