Doing Business with the County

Supplier Registration

Thank you for your interest in doing business with the County of San Diego. All suppliers interested in doing business must register on BuyNet. There is no fee for any supplier to register, receive email notifications, download documents, respond to solicitations, or be awarded a contract. It is simple and easy to do. If you have difficulty with the registration, please call (858) 505-6367 or email for assistance. Viewing and downloading solicitations does not require registration. However, to participate in submitting a response to a solicitation, you will be asked to log in or register. Register with BuyNet today and receive notice of business opportunities from the County of San Diego. The County does not mail out bid notices to contractors but relies on BuyNet for all communications.

The County of San Diego does not utilize prequalified suppliers except as may be identified and established separately under a specific procurement. Our goal is to seek competition for all County requirements for goods and services to the maximum extent possible.


Solicitation Postings

The Department of Purc hasing and Contracting posts solicitations on BuyNet for all procurements such as Requests for Quotes (RFQs); Requests for Bids (RFBs); Requests for Proposals (RFPs), and Requests for Statement of Qualifications (RFSQs). Requests for Information (RFIs) may also be posted on BuyNet. Email notifications are automatically sent to all suppliers registered on BuyNet based upon the particular commodity or service code(s) selected by the supplier in the registration system. Suppliers should periodically review their registration to ensure all information is accurate and up-to-date, and the commodity and services codes of interest are selected. Automatic notifications should not be relied upon, and suppliers are encouraged to regularly check BuyNet for opportunities.


Sales, Use, and Excise Taxes

The County of San Diego is exempt from Federal Excise Tax. However, the County is not exempt from State of California Sales and Use Tax. Unless advised otherwise, suppliers must itemize all taxes in invoices presented to the County for payment.


Local Preference

As with many government agencies, the County of San Diego has adopted a local preference program for businesses located within the County of San Diego that are also certified as a Disabled Veteran Owned Business, Veteran Owned Business, or Small Business. A five (5) percent or fifty thousand dollar ($50,000) preference, whichever is less, may be applied to the total price during the evaluation of a bid or proposal in Request for Bid (RFB) and for Request for Proposals (RFP) procurements. For RFPs, the preference will be applied to the price scoring factor. The local preference does not apply to Requests for Quotes (RFQs). To qualify as a Local Business, the business must maintain a headquarters or physical location providing the same or similar services to those proposed within the geographic boundaries of San Diego County. Local preference will not apply to public works contracts or where precluded by state or federal law or regulation.


Non-Discrimination and Non-Preferential Treatment of Suppliers

In accordance with Section 31 of the California State Constitution, the County of San Diego does not discriminate against, or grant preferential treatment to, any individual or group on the basis of race, sex, color, ethnicity, or national origin in the public procurement function. Therefore no special or preferential set-asides are allowed. However, the Board of Supervisors has established a Local Business Preference as described above, and a special program for State of California certified Disabled Veteran Business Enterprises (DVBE) physically located in the County. This program may allow DVBE preference for purchases up to $50,000. If you qualify for this certification, please review County of San Diego, Board of Supervisor Policy B-39a for further information. Additionally, the County encourages and supports the participation of small businesses in County solicitations. Our representatives regularly attend community outreach events where small business are counseled and assisted in registering on BuyNet. We are dedicated to supporting the small business community desiring to do business in and with the County of San Diego.


Product Demonstration Offers are Discouraged

Product demonstrations are discouraged unless part of a specific solicitation posted on BuyNet. Suppliers that may have a product or services of interest to the County of San Diego are encouraged to: register on BuyNet; and participate in County and/or other vendor/supplier outreach events hosted by various professional and trade associations. Any questions should be addressed to DPC at 858-505-6367 or by email at

How We Buy Goods and Services

The County of San Diego posts its requirements for goods and services on BuyNet. For procurements of goods and services up to $250,000 a Request for Quotation (RFQ) is typically used. RFQ responses are reviewed by the department and evaluated based upon price and other factors. Award recommendations are made to the offeror(s) that present the best value to the County . More complicated and higher dollar procurements for goods, services, and construction will typically be posted on BuyNet as Request for Bid (RFB) or Request for Proposal (RFP) solicitations. Evaluations and award criteria will be established in each solicitation.

Below is a brief explanation of other procurement tools used by the Department of Purchasing and Contracting:

  • The procurement of architectural, landscape architectural, engineering, environmental, land surveying, construction project management, and related professional services is governed by Board of Supervisors Policy F-40 “Procuring Architectural, Engineering, and Related Professional Services” and procured using a qualifications-based selection process T Price negotiations will be conducted to ensure that prices are fair and reasonable and in the best interest of the County.
  • Job Order Contracts (JOCs) are competitively awarded public works contracts used for repair, remodeling, or other repetitive work. JOCs cover a number of construction specialties such as general construction, electrical, asphalt paving, painting, HVAC, etc. As projects are needed, the County will issue task orders to the applicable JOC contractor to prepare a proposal for discussion and final task award by the County.
  • Cooperative purchasing agreements are used by the County of San Diego for the procurement of goods and services that were previously competitively solicited and awarded by other public agencies for the same products or services.


Who to Contact Regarding Payment Status

Should you have questions concerning the status of a payment, the first step should be to contact the department that received your goods or services; the Contracting Officer Representative (COR) established in the contract/PO; and/or the Procurement Contracting Officer at DPC. If you have reason to think your payment has been lost, contact Accounts Payable (AP) at (858) 694-2053.


Reutilization and Repositioning of Surplus Property

Surplus property is tangible property that has reached it’s useful life expectancy an is no longer of use to any County department because it’s either be determined to be obsolete, uneconomical to repair, or valued only for its material components or contents. Surplus property may include anything from office supplies and furniture to vehicles and heavy equipment.

The Department of Purchasing and Contracts offers an online reutilization/repositioning website accessible by county personnel for the purpose of reutilization of surplus County property within the County. Property from this site may be reutilized only for official County of San Diego use. list of items for reutilization . The sale of vehicles and heavy equipment has been contracted to our contracted auctioneer. You can learn more about upcoming auctions by visiting our Auctions/Property Disposal page.

The current auctioneer on contract can be found on the Reutilization/Repositioning internal website. The auctioneer is responsible for maintaining all registration requirements for use of the online portal.

All surplus is sold, AS IS, WHERE IS, with no warranty of any kind as to condition or serviceability.

County Property Disposal can be reached at:
Phone (858) 858-505-6841