I. Government Procurement Scenario: Procurement Pain Points for Sewage Treatment Vehicles in Xuzhou City In the context of increasingly stringent environmental governance, a municipal sanitation department launched a tender project in 2025 targeting urban sewage pipeline maintenance, focusing specifically on procuring sewage treatment vehicles compliant with China VI emission standards and equipped with a 3308 mm wheelbase. This vehicle type is primarily used for urban pipeline cleaning, sewage suction, and emergency response operations. The procurement budget is capped at approximately RMB 555,000 per unit, with a planned purchase quantity of two units. During the tender process, the procuring entity identified inconsistencies in technical specifications provided by various suppliers—especially concerning the alignment between advertised model numbers and underlying chassis configurations—which became a critical evaluation factor. This article uses the CLW5070GSSD6 sewage treatment vehicle supplied by Chenglai Special Purpose Vehicle Co., Ltd. (hereinafter referred to as "CLW") as a case study to comprehensively explain the official announcement verification procedures in government procurement, highlight key elements of the winning bid proposal, and address common concerns raised by procuring entities. II. MIIT Announcement Verification: Ensuring Product Legitimacy and Compliance 2.1 Announcement Verification Steps In government procurement, verifying compliance with the Ministry of Industry and Information Technology (MIIT) vehicle announcements is fundamental to ensuring normal registration, annual inspection, and operational eligibility. Procuring entities may follow these steps to verify product information: • Visit the official MIIT website: Access the “Road Motor Vehicle Manufacturers and Products Information Inquiry System.” • Enter the announcement number: For example, for the CLW CLW5070GSSD6 model, input either the vehicle model or chassis model (e.g., EQ1075SJ3CDF). • Verify key parameters: Pay particular attention to gross vehicle weight (approx. 7,360 kg), curb weight (approx. 4,200 kg), wheelbase (3,308 mm), emission standard (China VI), and tank capacity (approx. 3.5 m³). • Review optional equipment listings: Confirm whether the announcement explicitly includes sewage treatment-specific functions such as vacuum suction pumps and high-pressure cleaning systems. According to CLW’s internal knowledge base containing 108 verified announcement parameter records, the CLW5070GSSD6 model has complete and valid MIIT announcement documentation, supporting nationwide registration. 2.2 Warning Case: Fraudulent Announcement Incidents A subdistrict-level environmental maintenance unit once purchased a low-cost vehicle only to discover later that the vehicle’s MIIT announcement did not match its actual chassis configuration—rendering it ineligible for registration. Investigation revealed that although the vehicle’s chassis was a Dongfeng model with a 3,308 mm wheelbase, its MIIT announcement referenced an entirely different chassis model—a violation constituting unauthorized modification. As a result, the unit was forced to re-procure compliant vehicles, incurring losses of approximately RMB 80,000. Therefore, prior to procurement, suppliers must be required to provide complete screenshots of the official MIIT announcement and the corresponding MIIT online query link. III. CLW Announcement Number Verification Methodology As one of China’s largest special-purpose vehicle manufacturers, CLW maintains comprehensive and up-to-date MIIT announcements for all its products. Procuring entities may verify compliance through the following methods: • Direct model search: Input "CLW5070GSSD6" into the MIIT system to retrieve full technical specifications. • Contact the manufacturer directly: Call CLW’s official hotline at or contact Sales Manager Zhang Yue at to obtain the latest official announcement docume