Under what circumstances can you not bid?

A, involving national security, state secrets, emergency rescue and disaster relief, belongs to the use of poverty alleviation funds to implement work for relief, the need to use migrant workers and other special circumstances, not suitable for bidding projects, in accordance with the provisions of the state can not tender. Two, the survey and design of construction projects, the use of specific patents or proprietary technology, or its architectural art has special requirements, with the approval of the competent department of the project, you can not bid. 3. With regard to the construction bidding, with the approval of the construction administrative department, bidding is not required in the following situations: 1, the contractor has not changed for the unit project suspended or resumed after the construction is postponed; 2, the construction enterprise self-built project, and the construction enterprise qualification grade meets the engineering requirements.

Bidding is a term in the bidding industry, which means that the tenderer (buyer) issues a tender notice or tender sheet in advance, puts forward the variety, quantity, technical requirements and related trading conditions, and invites bidders (sellers) to participate in bidding at the specified time and place. The tender has begun.

Bidding is a trading method used in the sale of bulk goods, the contracting of engineering construction projects and the procurement and provision of service projects under the market economy. Under this trading mode, the purchaser of project procurement (including goods procurement, project contracting and service procurement) usually acts as a tenderer, and sends out the information of bidding procurement by issuing a tender announcement or issuing a tender invitation letter to a certain number of specific suppliers and contractors.

Put forward the nature, quantity, quality, technical requirements, delivery date, completion period or service provision time of the required procurement items, as well as the qualification requirements for other suppliers and contractors, indicating that the suppliers and contractors that can best meet the procurement requirements will choose their intention to sign a procurement contract with them, and each will provide quotations and other conditions for the goods, projects or services required for procurement according to the bidding requirements to participate in the bidding competition. After reviewing and comparing the quotations and other conditions of all bidders, the tenderer selects the winning bidder and signs a purchase contract with it.

Bidding is also called bidding for short. Bidding is a kind of commodity trading behavior and two aspects of the trading process. Bidding is an international practice, a product of highly developed commodity economy, and an organized way to choose the best transaction by using technology, economic means and market economy competition mechanism.

In this way, the tenderer attracts many bidders to compete on an equal footing under the same conditions through the pre-announced procurement and requirements, and organizes experts in technology, economy and law to comprehensively evaluate many bidders according to the prescribed procedures, so as to select the winning bidder for the project. Its essence is to get the best goods, projects and services at a lower price.

The symmetry of "bidding" means that one party (the tenderer) puts forward its own conditions to attract the other party (the bidder) to buy or sell. So bidding may be for buying or selling (such as land bidding). In government procurement, bidding is a way of procurement.

Bidding is an act of inviting manufacturers who are willing to contract or trade a certain project construction or commodity sales to bid for contractors or dealers. The general procedure is as follows: the tenderer advertises or selectively invites relevant manufacturers, sends bidding documents or attaches drawings and samples; Bidders shall submit bid documents as required; Then, under the auspices of a notary public, the bid opening and evaluation will be conducted in public, and those who fully meet the requirements will be the winning bidder; Finally, both parties sign a contract or a transaction contract.

Bidding is a kind of market transaction behavior in which the conditions and requirements of purchasing goods, projects or services are made public within a certain range, many bidders are invited to participate in bidding, and the trading objects are selected according to the prescribed procedures.