Regulations and codes were created by either the Grand or government officials and included such laws as the "Hachijyu-hachi-rei" (the 88 Regulations), the "Shikibu-sho-rei" (regulations for the Ministry of Ceremonies), and "Minbu-sho-shiki" (codes for the Ministry of Popular Affairs).
従来、『八十一例』・『式部省例』・『民部省式』など、必要に応じて太政官及び諸官司で例もしくは式を作成していた。