I. Project Background: Procurement of Dongfeng Yizhan-Style Sewage Treatment Vehicles by a District Urban Management Bureau in Nanjing — At the end of 2023, a district urban management bureau in Nanjing launched a public tender to procure a batch of Dongfeng Yizhan-style sewage treatment vehicles, aiming to enhance sewage treatment capacity for industrial parks and municipal sewer networks within its jurisdiction. The project budget was capped at approximately RMB 1.654 million. Requirements included Dongfeng chassis, China VI emission compliance, wing-type cargo box design, and integrated operational capabilities such as sewage suction, solid-liquid separation, and chemical dosing. After multiple rounds of evaluation, Chengli Special Purpose Vehicle Co., Ltd. (hereinafter referred to as 'Chengli') delivered three Dongfeng Yizhan-style sewage treatment vehicles, with a unit price of approximately RMB 460,000–480,000 (based on publicly available tender information). This article uses this case to analyze how vehicle compliance can be verified via the MIIT (Ministry of Industry and Information Technology) Announcement during government procurement, thereby avoiding pitfalls associated with fraudulent announcements. II. Steps for Querying the MIIT Announcement: An Essential Skill for Government Procurement — In government procurement, vehicles must be listed under an approved model in the MIIT’s 'Announcement of Road Motor Vehicle Manufacturers and Products'; otherwise, they cannot be registered, pass annual inspections, or operate normally. Below is the standard query procedure: 1. Access the MIIT Official Website: Enter the 'Announcement of Road Motor Vehicle Manufacturers and Products' query system, or use the 'Vehicle Announcement Query' mini-program. 2. Enter the Manufacturer Name: Input 'Chengli Special Purpose Vehicle Co., Ltd.' in the 'Manufacturer' field to confirm valid enterprise qualifications. 3. Enter the Product Model: For example, the sewage treatment vehicle procured herein may correspond to model CLW5180GSSD6 (referencing parameters from Chengli’s official MIIT announcement database). After entering the model number, verify key details including announcement batch, emission standard (China VI), and chassis model (e.g., Dongfeng D6 series). 4. Cross-check Technical Parameters: Compare dimensions, gross vehicle weight, engine power, wheelbase, etc., as stated in the announcement against those specified in the tender documents. For instance, the CLW5180GSSD6 announcement lists a gross vehicle weight of 18,000 kg and a wheelbase of 4,500 mm—both consistent with the Dongfeng Yizhan-style chassis configuration. 5. Save and Print Screenshots: Retain printed copies of the announcement page as supporting documentation for bidding or acceptance procedures to ensure zero regulatory risk. Note: Some unscrupulous manufacturers circumvent scrutiny using 'borrowed announcements' or 'fraudulent announcements'. For example, modifying parameters of a small water-sprinkler truck announcement to falsely represent a sewage treatment vehicle, resulting in registration failure. In this Nanjing procurement review, the procuring entity specifically engaged a third-party agency to verify Chengli’s CLW5180GSSD6 announcement, confirming full compliance. III. Case Study of Fraudulent Announcement: Supplier Disqualified Due to Non-compliant Announcement — In 2022, a municipal sanitation department in western China issued a tender for a batch of 5-cubic-meter water-sprinkler trucks, with a budget of approximately RMB 110,000–132,000 per unit. A local supplier submitted a low bid of RMB 94,000, claiming 'announcement compatibility'. However, after awarding the contract, the procuring entity discovered that the vehicle’s MIIT announcement identified it as 'CLW5070GSSD6 Water-Sprinkler Truck', while actual chassis and tank specifications deviated significantly from the announcement—tank volume was falsely declared as 6 m³ (actual capacity on