Legal basis: Standard Provisions on the Scope and Scale of Bidding for Construction Projects
Article 7 All kinds of engineering construction projects within the scope specified in Articles 2 to 6 of these Provisions, including engineering survey, design, construction, supervision and procurement of important equipment and materials related to engineering construction, must be subject to tender if they meet one of the following standards: (1) The estimated price of a single construction contract is more than 2 million yuan; (two) the procurement of important equipment, materials and other goods, the estimated price of a single contract is more than 6,543,800 yuan; (three) the estimated price of a single contract for the procurement of services such as survey, design and supervision is more than 500,000 yuan; (four) the estimated price of a single contract is lower than the standards stipulated in items (1), (2) and (3), but the total investment of the project is more than 30 million yuan.
Article 8 If the survey and design of a construction project uses a specific patent or proprietary technology, or has special requirements for architectural artistic modeling, the bidding may not be conducted with the approval of the competent department of the project.