ater Systems. No permit shall be required for exterior exposed rainwater leaders. 94.103.1.2.11. Exhibition. No permit shall be required for work set up for exhibition or for a television or motion picture set without any direct connection to any system for which a permit is required. 94.103.1.2.12. Certified Licensed Contractors. No permit shall be required for the replacement of the following items when the work is done on a detached, single-family dwelling and the work is performed by a contractor with a valid Certificate of Registration as a certified licensed contractor pursuant to LAMC Subdivision 91.108.12.3: 1. Replacement of defective hot water heaters with one of equivalent gallons, BTU rating, and vent capacity when the vent does not require relocation or replacement. 2. Replacement of plumbing fixtures and solar panels with equal kind and quality. 3. Replacement of defective domestic water piping within a dwelling with piping of equivalent size and quality. 4. Replacement of defective metallic water service piping with piping of equivalent size, quality, and conductivity. Metallic water service piping cannot be replaced with PVC under this provision. 5. Replacement of shower pans with the same size and capacity. A Certificate of Compliance pursuant to LAMC Subdivision 91.108.12.3 must be filed with the City in lieu of a permit. 94.103.2. Application for Permit. To obtain a permit, the applicant shall first file an application therefor, in writing, on a form furnished by the Authority Having Jurisdiction for that purpose. Such application shall: 1. Identify and describe the work to be covered by the permit for which application is made. 2. Describe the land upon which the proposed work is to be done by legal description, street address, or similar description that will readily identify and definitely locate the proposed building or work. 3. Indicate the use or occupancy for which the proposed work is intended. 4. Be accompanied by plans, diagrams, computations, and other data in accordance with LAMC Subdivision 94.103.2.1. 5. Be signed by the permittee or the permittee’s authorized agent. The Authority Having Jurisdiction shall be permitted to require evidence to indicate such authority. 6. Give such other data and information in accordance with the Authority Having Jurisdiction. 94.103.2.1. Plans and Specifications.