In any case where a provision of this chapter is found to be in conflict with a provision of any ordinance or local law or with a provision of any statute, rule, regulation or order of the State of New York, the provision which established the higher standard for the promotion of the health, welfare and safety of the citizens of the municipality shall prevail. In any case where a provision of this chapter is found to be in conflict with a provision of any other ordinance or local law existing on the effective date of this chapter, which established a lower standard for the promotion of the health, welfare and safety of the citizens of the municipality, the provisions of this chapter shall be deemed to prevail.