I. Scenario Introduction: Procurement Requirements of a Municipal Sanitation Department in Anshan City In winter 2025, the Urban Management Bureau of a district in Anshan City, Liaoning Province, faced the need to upgrade aging sewage treatment facilities. Local winter temperatures frequently drop below -20°C, causing conventional sewage treatment vehicles to suffer frequent shutdowns due to hydraulic system freezing and pipeline icing—resulting in high maintenance costs. The department planned to procure a blue-license-plate sewage treatment vehicle, with a budget capped at approximately RMB 155,000–177,000 (based on publicly available tender information), requiring cold-weather engine start capability, freeze-resistant hydraulic systems, and high-efficiency sewage separation performance. After multiple rounds of parameter comparison and on-site inspections, the department ultimately selected the CLW5070GSSD6 sewage treatment vehicle, custom-built by Chengli Special Purpose Vehicle Co., Ltd. on the Dongfeng D6 chassis. II. MIIT Announcement Verification Process: How to Confirm Vehicle Compliance In government procurement, official MIIT announcement parameters are prerequisites for vehicle registration, annual inspection, and commercial operation. Below is the announcement verification procedure conducted by the Anshan department prior to procurement: • Visit the MIIT Official Website: Access the “Road Motor Vehicle Manufacturers and Products Information Query System.” • Enter Key Information: Input either “Chengli Special Purpose Vehicle Co., Ltd.” or the product model number “CLW5070GSSD6” into the search field. • Verify Chassis and Parameters: Confirm that the chassis is the Dongfeng D6, with a wheelbase of 3,308 mm, and that the engine model meets China VI emission standards (e.g., Quanchai Q23-115E60). • Check Specialized Equipment: Verify that the sewage treatment tank volume, pump flow rate, and hydraulic system parameters match those specified in the tender documents. • Save Announcement Screenshot: Print and archive the query results as an attachment to the bid submission documents. This step helps prevent subsequent registration disputes. For example, in a 2024 procurement case in another region, failure to verify the MIIT announcement led to discrepancies between the vehicle’s actual configuration and its announced specifications—rendering the vehicle unregistrable and resulting in return and cancellation. III. Case of False Announcement: Risk Alert in Procurement In 2023, a county-level sanitation department in Northeast China procured a sewage treatment vehicle, with the supplier claiming “full compliance with MIIT announcements.” However, upon delivery, it was discovered that the actual chassis model did not match the announced one (a non-Dongfeng chassis was used instead), and the stated sewage treatment capacity was grossly overstated. MIIT verification confirmed that no corresponding official announcement existed for this vehicle—classifying it as a “cloned-plate vehicle.” As a result, the unit lost approximately RMB 100,000 in advance payment and faced administrative penalties. This case serves as a warning: procurement personnel must meticulously verify every announced parameter and avoid relying solely on verbal assurances. IV. How to Verify Chengli’s MIIT Announcement Number: Example Using CLW5070GSSD6 Chengli Special Purpose Vehicle Co., Ltd.’s official MIIT announcement information can be verified through the following methods: • Official Channels: Visit Chengli’s official website (www.clspecial.com) or call the customer service hotline at to request the announcement page for the specific model. • Chassis Warranty Integration: Dongfeng chassis enjoy nationwide warranty coverage; upper-body equipment is covered by lifetime service. Buyers may require suppliers to provide both the chassis certificate of conformity and documentation proving consistency with the MIIT announcement. • Parameter