By-Law is a rule established by a community or an organization to regulate itself, as allowed or provided for by some higher authority. The higher authority, generally a legislature (the legislative body of state ) or some other governmental body, establishes the degree of control or criteria that the by-laws may exercise. By-laws may be established by different agencies such as a business corporation, a neighborhood association, municipality, state, etc.
The collection of laws and constitution made by different authorities is “THE CODE”. A body of law established by the legislative authority, and intended to set uniformity, in generalized and systematic form.
Eg. The minimum acceptable dimension of a column for butwal municipality is 1′.
A minimum diameter of reinforcement for a column is 12 mm there are a number of codes related to NS or IS or AS.