Preventive, diagnostic, and demand maintenance programs are regularly performed on all equipment, machinery and systems. All electrical equipment, wiring and appliances shall be properly installed and maintained in a safe and approved manner.Equipment to store, prepare and serve foods in a sanitary manner. Complete list of Texas Comptroller Property Tax Forms and Applications click here. Texas Comptroller Property Tax Publications click here. A Certificate of Occupancy is required for all businesses in the city. Learn more about applying for a Certificate of Occupancy. Do I have to fill out an application every year? If the Zoning Request requires a Plan Amendment, fill in the information below (attach additional pages, if necessary). Chapter 1: Administration and General Requirements1.