Notwithstanding any provision in this article to the contrary, consumer’s piping installed prior to the adoption of this article or piping installed to supply other than natural gas may be converted to natural gas, if the inspector finds, upon inspection and proper tests, that such piping will render reasonable satisfactory gas service to the consumer and will not in any way endanger life or property; otherwise, such piping shall be altered or replaced, in whole or in part, to conform with the requirements of this article.
(1986 Municipal Code, Title 5, Chapter 4, Section 5-4-3)