2002 HONDA CRX User Comment / Complaint

The honda dealer repaired my firestone tire with a plug. later the repair did not hold. i took it to the firestone store and he said a plug was an incorrect and unsafe way to repair the tire. i then took it to a goodyear store and he told me the same thing. i returned to the honda dealer and told him my situation; whereupon he said the tire people were trying to sell more tires and everyone knows plug repairs are the most efficeint way to repair a puncture by a nail. can you comment on the honda dealer's remarks? are there any regulations by the nhtsa about repairs to a tire with a plug? your attention to this question is greatly appreciated. harold v.webb