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How to read a SAM.gov contract opportunity notice

Learn the fields that matter on a federal SAM.gov notice: notice type, solicitation number, response date and time zone, attachments, amendments, and points of contact.

Free guide6 min readSources checked Nov 12, 2026

A SAM.gov contract opportunity is the official public notice of federal work. Listings on other sites, including BidBeacon, are only pointers back to that notice. If a summary and the official page disagree, the official page and its attachments win.

Searching and viewing opportunities on SAM.gov is free. You do not have to pay anyone to look at a solicitation. BidBeacon is not affiliated with SAM.gov, GSA, or any other government agency, and this page is educational — not bid-preparation or legal advice.

Start with the notice type

Not every posting is an invitation to submit a priced offer today. The notice type tells you what stage you are in. Common types you will see on janitorial work include:

  • Sources sought (and some special notices used for market research): the agency is asking whether capable firms exist, and sometimes for a capabilities statement. A response can help the agency decide how to set the acquisition aside, but it is usually not a bid.
  • Presolicitation: the agency is signaling that a solicitation is coming. Watch for the follow-on posting and any draft documents.
  • Solicitation: the request for quotes, proposals, or bids. This is typically the document you must follow to compete for the award.
  • Combined synopsis/solicitation: a shorter form that combines the announcement and the solicitation, often used for commercial services. Still read every attachment.
  • Award notice: the contract has already been awarded. It is useful for market research, not for submitting a late offer.
  • Justification and similar postings: usually explain a limited-competition or sole-source decision, after or as part of an award process.

If you are unsure, look at the description and the instructions. A due date labeled for “capabilities statements” is not the same as a proposal due date. When in doubt, use the point of contact listed in the notice — not a guess.

Identify the solicitation (or notice) number and the agency

The solicitation number (sometimes called the notice ID, RFQ, RFP, or IFB number) is how you should name your files, your questions, and any email to the contracting office. Agencies also change documents by issuing amendments against that same number. If you download “the PDF” on Monday and an amendment posts on Wednesday, you are no longer working from the complete package.

Note the department, subtier, and office names (for example, a USDA Forest Service contracting office). The office that posts the notice is not always the building you will clean; the place of performance field and the statement of work tell you where the work is.

Response date, time, and time zone

This is the field that catches people. A notice will show a response date and a time, and that time is tied to a time zone. “Friday at 10:00 a.m.” is incomplete. 10:00 a.m. Eastern is 9:00 a.m. Central and 7:00 a.m. Pacific. Federal offices use the zone printed in the notice, not the zone of the job site, unless the notice says otherwise.

Treat the stated deadline as firm unless an amendment changes it. Submit early enough that a portal slowdown or an email filter is not your excuse. If the notice says offers must arrive at the contracting office by a certain time, mailing something on the due date is not the same as arrival.

Set-aside, NAICS, and product service code

Look for the NAICS code, the product or service code (PSC), and any set-aside. Janitorial work is often 561720, but the contracting officer chooses the code for that acquisition. A small-business, 8(a), HUBZone, SDVOSB, or WOSB/EDWOSB set-aside has its own eligibility rules. Unrestricted (full and open) means you may still bid if you meet the solicitation, but you will compete with all eligible offerors.

Do not rely on a headline that says “small business” if the official set-aside field says otherwise. Confirm what you can represent; our set-asides guide and SBA’s certification pages are the place to start, not a third-party summary.

Read the description, then open every attachment

The short description on the SAM.gov page is an abstract. The binding work is usually in attachments: a performance work statement (PWS) or statement of work (SOW), quality standards, a pricing schedule, representations and certifications, wage determinations, security or badging rules, and sometimes floor plans or equipment lists.

Download the files from the official notice. Name them with the solicitation number and amendment number. If an attachment is a Word file with tracked changes or a PDF package, open the whole package. Many janitorial bids rise or fall on the wage determination and the staffing hours hidden in a technical exhibit, not on the one-paragraph description.

Amendments

Agencies amend solicitations to correct a typo, change a site-visit date, swap a wage determination, add answers to vendor questions, or extend the due date. SAM.gov will show amendments on the same opportunity. You are responsible for reading them. A useful habit: before you hit send, refresh the official notice and confirm you have the latest amendment.

If an amendment answers questions, read the questions other firms asked. They often flag hidden costs (after-hours access, trash removal, government-furnished equipment, or a required quality-control plan).

Points of contact

The notice lists one or more points of contact, often a contracting officer and a contract specialist, sometimes with a technical or site contact for the walkthrough. Use the method the notice specifies — many offices will only accept questions in writing before a cutoff date, and some will not take phone calls about the requirement.

Do not use a contact you found on a company website or an old award notice if the current solicitation names someone else. And do not ask the site contact to waive a requirement that the contracting officer wrote; they usually cannot.

Site visits and questions

If the notice schedules a site visit or pre-proposal conference, read the RSVP rules. Some visits are optional; some are effectively required if you want to price the job honestly, and a few are mandatory in order to submit an offer. See site visits and pre-bid walkthroughs. Put question-cutoff dates on the same calendar as the proposal due date.

A simple reading order you can reuse

  1. Notice type, solicitation number, agency, and place of performance.
  2. Response date, time, and time zone; question cutoff; site-visit date.
  3. NAICS, set-aside, and any eligibility statements.
  4. Description, then every attachment, then the pricing schedule.
  5. Amendments, in order, including Q&A.
  6. Points of contact and the exact submission instructions (email, portal, page limits, number of copies).

Only then decide whether to bid. A well-read “no bid” is a professional outcome.

Where to look at current janitorial notices

You can always search SAM.gov for free by NAICS 561720 and location. BidBeacon also publishes free, 7-day-delayed listings of still-open federal janitorial notices for states including Alaska, Colorado, Missouri, South Dakota, Utah, and Virginia, collected at https://bidbeaconalerts.com/bids/. Use them as a directory, then open the official notice. Daily alerts, with a 14-day trial at $39/month, are optional if you want the same kind of list sooner. Your state APEX Accelerator can sit with you and walk through a live notice at no cost.

Sources (checked November 12, 2026)

See open federal janitorial notices by state. Free listings, delayed 7 days, each linked to the official SAM.gov notice.

Browse free state listings