A minimum 14-inch wide and 28-inch high panel shall be provided to afford access to the bath trap. It shall be located on the wall behind the end of the bath tub where the drain outlet is located. The access panel shall be a minimum 12" x 18" when located in the ceiling below.
Exceptions: Access panels shall not be required for the following:
- Buildings of Use Group R-1.
- Buildings of Use Group R-2 containing more than 8 stories of dwelling units.
- Where trap joints are soldered, solvent cemented or screwed so as to form a solid connection.
Access panels which are installed within fireresistance rated assemblies shall be labeled doors of the required fireresistance rating. Installation in stairway enclosures is prohibited.