I. Background: Procurement Requirements for Rainy-Season Operations in Xiamen In summer 2025, a municipal sanitation department in Xiamen initiated the procurement of a batch of compact sewer cleaning vehicles for urban drainage network maintenance. Located on China’s southeastern coast, Xiamen receives over 1,200 mm of annual rainfall; during the rainy season, low-lying road sections frequently flood, requiring sewer cleaning trucks to operate frequently under hot, humid, and high-salinity fog conditions. The procurement department ultimately selected the Dongfeng dual-cab blue license plate 3-cubic-meter sewer cleaning truck—requiring high maneuverability in narrow alleys and aging residential communities, as well as all-weather operational capability. After multiple rounds of technical and commercial evaluation, a supplier offering Chengli special-purpose vehicles (model: modified based on Dongfeng chassis; reference announcement number CLW5070GSSD6 or similar) won the bid. Post-delivery, the customer reported that the vehicle’s anti-corrosion coating performance, sealing component durability, and stability under high-load operation—all met expectations in Xiamen’s hot and humid environment. This article uses the case as a starting point to systematically explain the critical ‘Announcement Verification’ step in government procurement of sewer cleaning trucks—and how to avoid common pitfalls. II. MIIT Announcement Verification Process: Three Steps to Confirm Vehicle Legitimacy For government procurement, vehicles must be listed in the Ministry of Industry and Information Technology (MIIT) ‘Announcement of Road Motor Vehicle Manufacturers and Products’; otherwise, they cannot be registered, licensed, or pass annual inspections. Below is the standard verification procedure: Step 1: Access the MIIT Official Website Visit the ‘Road Motor Vehicle Manufacturers and Products Information Query System’ (on the MIIT official website), and enter either the chassis model number or the complete vehicle announcement number under the ‘Vehicle Announcement Query’ section. Step 2: Enter Key Parameters For example, for the Dongfeng dual-cab blue license plate 3-cubic-meter sewer cleaning truck, input the chassis model ‘EQ1075SJ3CDF’ or the vehicle announcement number ‘CLW5070GSSD6’ (a Chengli water-sprinkling truck announcement; sewer cleaning truck announcement numbers follow similar logic). The system will return full technical specifications, including: manufacturer, product name, overall dimensions, gross vehicle weight (GVW), curb weight, engine model, emission standard, wheelbase, tire specifications, etc. Step 3: Verify Critical Information Key items to verify include: – Emission Standard: Must comply with China VI (e.g., ‘GB17691-2018 China VI’); – Vehicle Category: Sewer cleaning trucks fall under either ‘Box-type Cargo Trucks’ or ‘Special-Purpose Working Vehicles’; – Rated Payload: For blue license plate vehicles, GVW must be ≤ 4,495 kg, and curb weight must match the announced value—otherwise registration will be denied; – Chassis Origin: Chassis from Dongfeng, Sinotruk, Foton, and other branded manufacturers must have corresponding authorized announcements. III. Real-World Case: Warning Against Fraudulent Announcements In 2024, a municipal sanitation department procured a batch of sewer cleaning trucks. A supplier offered an ‘attractive price’, but failed to provide complete MIIT announcement documentation. Upon verification, it was found that the vehicle’s chassis model was not registered in the MIIT database—making it an illegal ‘cloned-license-plate vehicle’. Consequently, the local traffic management authority refused registration, resulting in approximately RMB 100,000 in losses. As a result, the procuring entity mandated that all future suppliers submit official MIIT announcement screenshots and Vehicle Conformity Certificates. Chengli Special-Purpose Vehicles, manufactured in Suizhou, maintains full MIIT announcements for