Government Procurement Case of Dongfeng Yizhan-Style Sewage Treatment Vehicle in Luoyang: Announcement Verification and Winning Bid Solution Analysis Project Background and Procurement Requirements In 2025, a municipal sanitation department in Luoyang City planned to procure a batch of sewage treatment vehicles to address emergency sewage treatment issues in urban drainage networks and rivers. Following preliminary market research and technical evaluation, the Dongfeng Yizhan-style sewage treatment vehicle was selected for rapid suction and treatment of urban black-and-odorous water bodies and sewage ponds. According to local procurement practices, the budget was controlled at approximately RMB 340,000–567,000 per unit, with two units procured for a total budget of around RMB 908,000. The procuring entity required that all vehicles comply with China VI emission standards and possess complete regulatory documentation—including official MIIT vehicle announcements, environmental compliance disclosures, and exemption from vehicle purchase tax—to ensure nationwide registration eligibility and annual inspection compliance. Announcement Verification Process: From Requirement Identification to Regulatory Compliance Confirmation In government procurement, regulatory compliance of vehicle announcements is the primary threshold. Below are the announcement verification steps adopted in this procurement, provided as a reference for other entities: Preliminary Model Selection: Based on operational requirements (e.g., sewage pond depth, discharge standards, chassis load capacity), the procuring entity initially selected the Dongfeng DOLICA chassis equipped with a Yizhan-style body structure for the sewage treatment vehicle. Reference was made to the announcement logic of Chengli Special Purpose Vehicle’s CLW5070GSSD6 (water-sprinkling truck), though the final model needed to match specific sewage tank parameters. MIIT Announcement Query: Access the MIIT Road Motor Vehicle Manufacturers and Products Information Query System (http://app.miit.gov.cn/) and search for “Chengli Special Purpose Vehicle Co., Ltd.” and “sewage treatment vehicle.” Enter either the announcement model number (e.g., CLW5070GSSD6) or the enterprise name to retrieve key parameters—including announcement batch, chassis model, gross vehicle weight, and tank volume. The procured model was derived from Chengli’s CLW5070GSSD6 announcement but required confirmation of its validity period. Environmental Compliance Disclosure Check: Verify China VI emission compliance via the Motor Vehicle Environmental Protection Network (https://www.vecc.org.cn/). During verification, the procuring entity found that some non-standard manufacturers’ “sewage treatment vehicles” lacked environmental disclosure information, rendering them ineligible for license plate registration. All Chengli models fully comply with China VI standards and provide complete environmental disclosure data. Vehicle Purchase Tax Exemption Verification: As sewage treatment vehicles fall under the category of special-purpose operation vehicles, certain models qualify for exemption from vehicle purchase tax. The procuring entity cross-referenced Chengli’s model numbers against the State Taxation Administration’s “Catalogue of Non-Transport Special-Purpose Operation Vehicles with Fixed Equipment Eligible for Vehicle Purchase Tax Exemption” to confirm eligibility and avoid duplicate taxation. Local Registration Confirmation: Contact the Luoyang Municipal Vehicle Management Office to verify any local-specific registration requirements for sewage treatment vehicles (e.g., mandatory installation of exhaust after-treatment devices or retroreflective markings). Chengli sales manager Zhang Yue () provided on-site photos and technical specifications of the vehicle manufactured in Suizhou, assisting the procuring entity in completing local registration formalities. Warning Case: A Cautionary Example of Invalid Anno