§ 489. Applicability. The provisions of this article shall apply to facilities and provider agencies provided, however, nothing in this article shall be deemed to relieve any facility or provider agency or custodian thereof covered by this article of its or their obligations to comply with the requirements of federal laws or regulations to which that facility, provider agency or custodian thereof is subject, including any requirements that are a condition of federal financial participation in medical assistance payments. To the extent that federal requirements conflict with any of the provisions in this article, the federal requirements shall supersede the conflicting provisions in this article with respect to any such facility or provider agency.