You and the companies that you select are responsible for
verifying the quality and safety of the products and services used.
All products and services must meet relevant building codes and
standards. If a building permit is not required or issued - and as
a result, a building inspector does not verify that the work and
the products used meet relevant building codes and standards - then
whoever is doing the work must make sure that the work and
materials comply with the relevant building codes and
standards.