Unlike the traditional catalog-based contract where requests for products are based on what is currently available in a catalog, SEWP is a request-based contract vehicle where the catalog is based on customer requests. The SEWP catalog is updated continuously based on customer requests. If the products/services you require are within the SEWP scope, you can use the Quote Request Tool (QRT) to submit a Request for Quote (RFQ) or a Request for Information (RFI) for the items you want to acquire. After adding the items to their contract, Contract Holders can respond with a quote/information.
You can then order the items based on the provided quote(s).
Any questions concerning scope can be sent to help@sewp.nasa.gov.