If drafts of proposals were adopted and became 'proposals,' it meaned that the congress showed its intension to the government under the Constitution of the Empire of Japan, and they were not draft laws and therefore were not legally binding.
ただし、建議案が採択されて「建議」となっても、これは大日本帝国憲法下で議院が政府に意思を示すことであり、法案ではないため法的拘束力はない。