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You can email questions on Office Supplies Fourth Generation, or OS4, to ncsccustomer.service@gsa.gov or the following POCs:
| Name | Phone | |
|---|---|---|
| Wdonna B. Woods | 347-541-1046 | wdonna.woods@gsa.gov |
| Paula D. Hance | 816-614-0867 | paula.Hance@gsa.gov |
| FSSI OS4 program | fssi.officesupplies@gsa.gov |
By purchasing office supplies through OS4, you ensure you are meeting all relevant mandates and procurement regulations, including TAA. OS4 items, where applicable, meet product guidelines, and bulk purchases reduce deliveries and transactions.
Also, by using your GSA SmartPay card, you automatically get the discounted OS4 prices, and your agency gets credit card refunds in the process. Unlike buying office supplies retail, you are not paying sales tax, which your agency can monitor by receiving spend data to help keep prices down in the future. The contract prices have been proven to be better than any mass pricing discounts agencies can get on their own, and OS4 is easy to use, especially through GSA Advantage.
Our goal is to make it as easy as possible for all purchasing authorities and purchase cardholders to procure office supplies that are compliant with all relevant mandates.
For orders at or below the micro-purchase threshold, use your GSA SmartPay card to make a purchase in the FSSI Office Supplies aisle of GSA Advantage. This is available by selecting Office Supplies & Equipment FSSI (BIC) on the left-side menu of the website.
FedMall, walking into a vendor’s store, or otherwise contacting the vendor directly are other means of buying office supplies through OS4, though they are not as streamlined as purchasing through GSA Advantage.
For orders over the micro-purchase threshold, check with your contracting officer to understand your agency’s purchasing policy.
Visit our eligibility determinations page to read more about entities eligible to buy through us.
Many agencies mandate the use of OS4. Some agencies have designated which OS4 contractors to use, based on specific agency mandates. The information is provided through your agency’s FSSI representative.
Standard delivery is seven business days after receipt of order. Express, desktop, secure, and international delivery are all available and may carry an extra fee. Orders below the minimum threshold of $100 (may be lower, depending on the vendor) may also have a convenience fee. In most circumstances, purchasing authorities and purchase cardholders can and should plan ahead for the procurement and delivery of office supplies. By doing so, the federal workforce significantly decreases costs, as overnight delivery can add 15-20% of the cost of the item with some vendors, and we reduce our impact on the environment and streamline the process for our employees.
One way to reduce the total cost of your order is to increase the order size. This also reduces the costs of all items in the OS4 over time. This process results in less paperwork, less tracking, and less reconciliation. Plus, larger and fewer orders means there are fewer trucks on the road making deliveries, reducing the federal government’s financial footprint. We recommend you consolidate your orders, so you have fewer total transactions to manage. However, because it is not always possible to combine orders or otherwise meet the minimum order amount, some OS4 vendors process smaller orders with an additional convenience fee.
Orders below the micro-purchase threshold can be placed with any Schedule contractor that can meet your agency’s needs. For ordering, follow the procedures in GSAR 538.7103 (GSA Class Deviation RFO-2025-FSS-GSAR 538), as applicable.
Yes. All contractors are required to remain AbilityOne certified resellers.
We are committed to increasing small business participation in strategic sourcing initiatives and OS4 is expected to increase the volume of spend going to small businesses, while also delivering government savings.
In general, the OS4 program includes a wide range of products, brands, and part numbers. If a product is not available under OS4, we recommend purchasing an item that is a close second to the office supply you are intending to buy.
OS4 includes a Delivery Tier Discount structure. Percentage discounts are included on orders of $300 and more with some vendors.
For a list of OS4-awarded vendors, visit Office Supply Fourth Generation Awarded Vendors. OS4 was a full and open competition, and extensive competition was received. Not every proposal submitted received an award.
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Rates for Alaska, Hawaii, and U.S. territories and possessions are set by the Department of Defense.
Rates for foreign countries are set by the Department of State.
Rates are available between 10/1/2023 and 09/30/2026.
The End Date of your trip can not occur before the Start Date.
Traveler reimbursement is based on the location of the work activities and not the accommodations, unless lodging is not available at the work activity, then the agency may authorize the rate where lodging is obtained.
Unless otherwise specified, the per diem locality is defined as "all locations within, or entirely surrounded by, the corporate limits of the key city, including independent entities located within those boundaries."
Per diem localities with county definitions shall include"all locations within, or entirely surrounded by, the corporate limits of the key city as well as the boundaries of the listed counties, including independent entities located within the boundaries of the key city and the listed counties (unless otherwise listed separately)."
When a military installation or Government - related facility(whether or not specifically named) is located partially within more than one city or county boundary, the applicable per diem rate for the entire installation or facility is the higher of the rates which apply to the cities and / or counties, even though part(s) of such activities may be located outside the defined per diem locality.
U.S. General Services Administration