We often hear criticism,(maybe I should instead say accusations),that the building code is hard to understand, From my own experience, I have heard many building engineers say so in the United States and Europe, I have no intention of being dogmatic, but it is also true that I am inclined to agree with the British building engineer who said,"Since we are entrusted with building houses and buildings by citizens,it is our duty as professionals to be thoroughly acquainted with laws and regulations concerning buildings."

Actually, there are not a few cases in the United States and European countries where a professional organization compiles a handbook or guidebook, and if you follow it, it is legally accepted, In particular,in the United States each city and town has an independent law or regulation,and the building codes and zoning codes are more or less different in each city,Consequently, the publication of manuals is widespread, (Note: The oft mentioned Uniform Building Code, the Basic Building Code, and the fire prevention code issued by the fire insurance accociation are not laws ,but reference materials for the laws and regulations of local governments, This aspect is misunderstood in Japan.)