The certification required by this article shall be provided by the new user of the appliance and shall be completed by a contractor having a valid Class C-55 water conditioning contractor’s license or Class C-36 plumbing contractor’s license and filed with the local agency responsible for issuing plumbing permits.

1. (a) Name and address of homeowner.
2. (b) Manufacturer of the water softening or conditioning appliance, model number of the appliance, pounds of salt used per regeneration, and salt efficiency rating at the time of certification.
3. (c) Manufacturer of the water-saving devices installed, model number, and number installed.
4. (d) Name, address, and the specialty contractor’s license number of the C-55 and C-36 licensee making the certification.

The certification form shall contain all of the following information: