Contractor shall perform and be responsible for the following responsibilities, including but not limited to: A. Perform quarterly preventative maintenance inspections for all CNG fueling equipment. B. Provide 24/7 emergency repair services with response times that align with contract requirements. C. Supply all labor, supervision, tools, materials, replacement parts, and equipment required for service execution. D. Ensure that all maintenance and repairs are carried out by certified CNG technicians. E. Comply with all federal, state, and local safety regulations governing CNG fueling stations. F. Maintain detailed service records and reports, including completed inspections, findings, and corrective actions taken. 4.3. Preventive Maintenance Services Maintenance Schedule A. Each fueling station must undergo one full preventative maintenance service every quarter. B. The City will coordinate and schedule these service visits, which will each consist of one eight-hour on-site inspection per quarter. C. Maintenance will be conducted Monday through Friday between 8:00 AM and 5:00 PM unless an emergency requires after-hours service. D. Technicians must check in and out with on-site staff before and after performing work. 4.4. Preventive Maintenance Tasks Contractor shall perform the following inspections and maintenance tasks, which are included in each quarterly service visit: A. Compressor and Controls Inspection: 1. Inspect compressor skid and enclosure for structural damage, corrosion, and leaks. 2. Check fault logs and active system error codes using diagnostic tools. 3. Ensure cooling systems are free of dirt and debris and function efficiently.