In addition to the local building regulations, decisive for the design of 
theatres are the Places of Assembly Regulations of the relevant state. 
This is based on the Model Places of Assembly Regulations, which 
can vary in detail from those of a particular state! This legislation 
applies from 200 spectators. It should be noted that it is not the actual 
number of seating or standing places that counts: it is assumed that 
there are two spectators per m2 in the place of assembly (for rows of 
seats; two spectators per running m for standing places).