In any case where a provision of this chapter is found to be in conflict with provisions of any zoning, building, fire, safety, or health ordinance or code of the corporate unit and of this state on or after January 1, 1971, the provision which establishes the higher standard for the promotion and protection of the health and safety of the people prevails, except those provisions established under the State Building Code effective July 1, 1977, as delineated in § 45-24.3-4, are to be the “higher standard”. In any case where a provision of this chapter is found to be in conflict with a provision of any other ordinance or code of the corporate unit or of this state existing on January 1, 1971, which establishes a lower standard for the promotion and protection of the health and safety of the people, the provisions of this chapter are deemed to prevail, and any other ordinances or codes are declared to be repealed to the extent that they may be found in conflict with this chapter. If any section, subsection, paragraph, sentence, clause, or phrase of this chapter is declared invalid for any reason whatsoever, that decision shall not affect the remaining portions of this chapter, which shall remain in full force and effect, and to this end the provisions of this chapter are declared to be severable.