The large-scale political changes represented by the formation of the Ritsuryo Order affected the production of sue ware in a variety of ways; arguing backwards from this, it should be possible to reconstruct one aspect of that political order by studying changes in sue production. Assuming that kilns used for firing both roof tiles and sue held the key to changes in ceramic production for this period, and taking as specific example the production of roof tiles and sue in Owari, this paper examines the relationship between the formation of the Ritsuryo Order and ceramic production in outlying regions.<BR>Whereas a new system of production having one kiln per kori was established in Hokuriku and elsewhere in the first half of the seventh century, through the implementation of new economic policies during Suiko's reign, change is virtually undetectable at the Owari Sanage Kiln where the provincial governor's authority was strong, and response to the new policy relatively weak. In the latter half of the century, however, regional permeation of centralized policy was reinforced through the formalization of the political system, and the coordination of various policies, including those involving Buddhism and economic production, as a single entity.<BR>In order to drive a wedge into the local control of the Owari provincial governor, the central government established a temple at Higashibata as a means of gaining leverage over powerful families in the immediate area. The Number 2 Kiln at Shino'oka was then built in order to supply tiles for this temple. In opening up the new Shino'oka Kiln, molds for eave tiles were brought from Okuyama Kume Temple, probably together with a number of artisans, while sue craftsmen were also taken from the Sanage Kiln controlled by the provincial governor and applied to the development of the new site. Subsequently, the central government continued to transfer roof tile technology to the Bihoku Kiln, while sue produced there was also taken to the Asuka Ishigami site and other locations in the Kinai core region. In this sense it is possible to regard the policies toward Buddhism and economic production as a single entity, symbolized by kilns that doubled for firing both roof tiles and sue.<BR>This kind of development in the latter seventh century is seen in many places, such as the Kosugi Maruyama Kiln in Toyama, the Zenkoji Kiln in Fukushima, and the Bokewara site in Shiga. Most of these kiln sites later developed, through the implantation of iron smelting technology, into multifaceted industrial complexes. Taken as a whole, these production sites may be seen as having been created through the enforcement of a single policy, and can be divided in the "newly developed" (Shino'oka, Bokewara) and "reorganized" (Zenkoji, Kosugi Maruyama) types. In the mid eighth century, however, these production sites waned, and a wave of restructuring swept through. In Owari, whereas the Bihoku Kiln declined on the one hand, the Sanage Kiln was incorporated into the Ritsuryo Order on the other, and production continued in steady fashion.