U.S. building standards were provided by associations or organizations to develop standards, these institutions are mostly independent non-profit private institutions, without any institutional and organizational management. U.S. law will be engaged in standardization, testing, welfare and other activities of private institutions for the non-profit organization. These institutions are not to make money, such as the American National Standards Institute(ANSI),United States heating,heating and Air Conditioning Engineers(ASHRAE),American Society for Testing and Materials(ASTM) American Gas Association(AGA),the National Fire Protection Association (NFPA), American forestand Paper Association(AF & PA)and so on.

The members of these private institutions generally for government agencies, universities, research institutes, testing and certification, and production and other aspects of representative.In the standard setting and review, the Association has relatively strict organization and working procedures, such as the American Society for Testing and Materials(ASTM),there are various technical committees, sub-committees and associations of the Technical Standards Committee. Standards approvedby the logistical work Keworking group drafting the draft standard, cross-correlation branch considered by the relevant committee submitted fable, the final review and approval by the Association Standards Board issued standards for the association. Association of the composition ofthe committee and its principle is represented by various stakeholders ratio does not exceed 30% of the total number.

Any organization (including associations, societies,manufacturer, etc.), can be prepared that there is a market demand from technical standards, guidelines and manuals. American National Standards Institute(A NSI)or other authoritative body through certain procedures(notice, to seek the views of modifications) to a standard approved as a national standard(still voluntary adoption of standards,which is China's national standards are essentially different), this standard canbe adopted as a standard aspect or a particular region. Only the federal government some states, counties, cities were identified or referenced standard is recognized only when the administrative jurisdiction in its legal effect, while the federal government or th estate, county, municipal mandatory standards.