With respect to fresh noodles, 'Fair Competition Codes concerning labeling on fresh noodles' in accordance with the Act against Unjustifiable Premiums and Misleading Representations have been stipulated whereby, as to products containing 'thirty percent or more buckwheat flour,' it is allowed to mark them as 'soba' (buckwheat noodles).
「生めん」については、不当景品類及び不当表示防止法に基づく「生めん類の表示に関する公正競争規約」が定められており、その中で「そば粉30%以上」の製品について「そば」との表示が認められる。