According to the former State Planning Commission's "Regulations on the Scope and Scale Standards of Bidding for Engineering Construction Projects" (State Planning Commission Order No. 3), engineering construction projects include project survey, design, construction, supervision and engineering construction. For relevant procurement of important equipment and materials, bids must be invited if they meet one of the following standards:
The estimated price of a single construction contract is more than 2 million yuan;
For important equipment, materials and other goods Procurement, if the estimated price of a single contract is more than 1 million yuan;
Procurement of services such as surveying, design, supervision, etc., if the estimated price of a single contract is more than 500,000 yuan;
Single contract The estimated price is lower than the above standards, but the total project investment is more than 30 million yuan.