Any plumbing system regulated by this code that was legally installed prior to the effective date of this code, or for which a permit to install has been issued.
(International Plumbing Code® 202.0)
Building Trades Resource
Any plumbing system regulated by this code that was legally installed prior to the effective date of this code, or for which a permit to install has been issued.
(International Plumbing Code® 202.0)