301.2 Defenses. It is a defense to prosecution under Section 301.1.1 that the act is included in
one of the enumerated categories listed in this subsection. No permit is required for the
4. Stopping of leaks in pipes, drains, valves, or plumbing fixtures if the repair does not
require rearrangement of valves, pipes, or fixtures.
9. Installation of a portable heating appliance, portable ventilating equipment, portable
evaporative cooler, or portable comfort cooling unit.
30. Replacement in kind of any fitting, valve, or plumbing fixture that does not change the
number of fixtures or the location of a fixture “rough-in” except that a permit is required
if a utility release is necessary.
31. Replacement of permanent heating, ventilating, or air-conditioning equipment where no
change in “rough-in” is required, if the value of the work does not exceed $3,000.