I. Case Background: Municipal Sanitation Department’s Procurement Requirement in Guangzhou In early 2026, the Urban Management Bureau of a district in Guangzhou City issued a government procurement notice for a 3308 yellow-plate sewage treatment vehicle, with a budget cap of approximately RMB 280,000, intending to procure one unit for emergency response and routine maintenance of urban sewage pipelines. According to publicly released tender information, the vehicle was required to comply with China VI emission standards, feature a highly stable chassis, and be capable of high-frequency operation under southern China’s hot and humid climate conditions. Ultimately, CLW Special Purpose Vehicle Co., Ltd. delivered the vehicle at a unit price of approximately RMB 265,000 (based on publicly available tender data), and the customer reported stable performance during high-load operations in the rainy season. II. Qualification-Based Procurement Process: Six Essential Certifications Required for Authorized Manufacturers In government procurement—especially for environmental protection equipment—qualification review is a critical step to ensure project quality. Below is the core list of certifications required by the municipal sanitation department in this procurement, which also serves as key verification items for procurement entities during evaluation: 1. Business License and Scope of Operations: Suppliers must hold manufacturing or sales qualifications for special-purpose vehicles, with business scope explicitly including terms such as “sewage treatment vehicle” or “sanitation vehicle.” 2. MIIT Announcement and Product Model Number: Each vehicle model must be listed in the MIIT’s “Announcement of Road Motor Vehicle Manufacturers and Products.” For example, CLW’s model CLW5070GSSD6 (a water-sprinkling truck) or similarly announced sewage treatment vehicles. Procurement entities may verify listings via the MIIT official website (www.miit.gov.cn). 3. China Compulsory Certification (CCC Certification): Both the vehicle chassis and complete vehicle must pass CCC certification to ensure safety performance. 4. Environmental Compliance Disclosure: Suppliers must provide the environmental information QR code or public identification number for China VI emissions compliance, verifiable on the Ministry of Ecology and Environment’s Motor Vehicle Environmental Protection Network (www.vecc.org.cn). 5. Quality Management System Certification: ISO 9001 Quality Management System certification is commonly required; some projects further mandate ISO 14001 Environmental Management System certification. 6. After-Sales Service Commitment and Spare Parts Supply: Suppliers must provide original-chassis nationwide warranty letters (e.g., Dongfeng or Sinotruk chassis) and lifelong service commitments for the superstructure, along with documented capability for 24-hour direct spare parts dispatch. III. How to Verify Production Authorization: A Practical Guide for Procurement Entities For procurement units, verifying manufacturer qualifications is essential to prevent procurement of unlicensed (“three-no”) products or illegally modified vehicles. The following are concrete verification steps: • MIIT Announcement Verification: Visit the MIIT’s “Road Motor Vehicle Manufacturer and Product Information Query System” (www.miit.gov.cn), and enter either the vehicle model number or enterprise name “CLW Special Purpose Vehicle Co., Ltd.” to confirm whether the model is officially listed. • Emission Standard Verification: On the Ministry of Ecology and Environment’s “Motor Vehicle Environmental Protection Network” (www.vecc.org.cn), input the vehicle’s VIN or engine model number to authenticate genuine China VI emission compliance. • Enterprise Credit Verification: Access the State Administration for Market Regulation’s “National Enterprise Credit Information Publicity System” (www.gsxt.gov.cn) to review the enterprise’s registration status, credit rating, and operati