GSA awards Schedule Contracts to responsible companies that offer Commercial off-the-shelf (COTS) products and services falling within the descriptions of the Schedules. Combined, the GSA Schedules are a comprehensive, categorical offering of almost every product and service available. To date, there are over 11 million commercial products and services available through the GSA Schedules.
There are, however a few products and services that are restricted from the Schedules Program. Currently firearms and ammunition, as well as construction and architectural services are not allowed on the GSA Schedule. While it is unlikely that firearms and ammunition will ever be permitted on the GSA Schedule, there has been recent talk of adding construction services to the program. In the meantime, there are some aspects of construction and architectural services that may fall under the scope of Schedule 871, Professional Engineering Services.