Scope: Building Codes Generally Include: (a) Standards for structure, placement, size, usage, wall assemblies, fenestration size/locations, egress rules, size/location of rooms, foundations, floor assemblies, roof structures/assemblies, energy efficiency, stairs and halls, mechanical, electrical, plumbing, site drainage & storage, appliance, lighting, fixtures standards, occupancy rules, even swimming pool regulations. Sounds like a lot but there are nearly infinite ways to build it in a hazardous fashion; falls, electrocution, contamination, explosion, fire. (b) Rules regarding parking and traffic impact. (c) Fire code rules to minimize the risk of a fire and to ensure safe evacuation in the event of such an emergency. (d) Requirements for earthquake, hurricane, tornado, flood, and tsunami resistance, especially in disaster prone areas or for very large buildings where a failure would be catastrophic. (e) Requirements for specific building uses (for example, storage of flammable substances, or housing a large number of people). (f) Energy provisions and consumption. (g) Grandfathering provisions: Unless the building is being renovated, the building code usually does not apply to existing buildings. (h) Specifications on components. (i) Allowable installation methodologies. (j) Minimum and maximum room and exit sizes and location. (k) Qualification of individuals or corporations doing the work. (l) For high structures, anti-collision markers for the benefit of aircraft. Building codes are generally separate from zoning ordinances, but exterior restrictions (such as setbacks may fall into either category