SUMMARY
in this study conducted a study of the ratio legis regulation of the authority of the Regional Representative Council of the Republic of Indonesia (DPD RI) in Supervision of Draft Regional Regulations and Regional Regulations contained in Article 249 paragraph (1) letter j of Law Number 2 of 2018 concerning the Second Amendment to Law Number 17 of 2014 concerning Regional People's Consultative Assembly, People's Representative Council, Regional Representative Council, and Regional People's Representative Council (MD3 Law). This research is normative legal research with a statutory and conceptual approach. The results of this study are the legislative authority ratio of the DPD RI in supervising the draft of regional regulations and regional regulations to strengthen the function of the DPD RI within the framework of the unitary state of the Republic of Indonesia, especially in maintaining the harmonization of regulations at the central level with regulations at the regional level in the form of draft regional regulations and regional regulations.