With so many different Special Item Numbers (SINs) available on the GSA Multiple Award Schedule (MAS), it can be hard for contractors to identify which SIN is the best fit. One SIN that is often the cause of confusion is the facilities maintenance SIN, 561210FAC in the Facilities Large Category. While this SIN can be used to offer complete facilities maintenance or standalone services, there are specific requirements that often trip up prospective contractors. In this blog, we’ll discuss how to pursue both complete facilities maintenance and standalone services under the facilities SIN, and what recent changes have been made to this Large Category.
What is the Facilities SIN?
The primary SIN for offering facilities maintenance is 561210FAC, Facilities Maintenance and Management. 561210FAC covers all services relating to the operations, maintenance, and repair of federal real property, such as hospitals and federal buildings.
This SIN is mainly intended for offerors who can provide total facilities maintenance solutions – what GSA refers to as Complete Facilities Maintenance. The Facilities Category Attachment states that “GSA will not award MAS contracts to offerors only offering service types such as janitorial, plumbing, and electrical, which can effectively be performed by contractors who provide Complete Facilities Maintenance”.
In other words, this SIN is generally not intended for contractors who only provide one type of maintenance services. However, there are exceptions for a few types of standalone services, which we’ll cover later. But first, we’ll dive deeper into the definition and requirements for Complete Facilities Maintenance.
How is Complete Facilities Maintenance Defined?
To qualify for Complete Facilities Maintenance under the facilities SIN, offers must encompass at least three different types of services (for example, HVAC, janitorial, and electrical maintenance). It’s important to note that any combination of service types can be used, as long as there are three distinct services from the list in the Facilities Category Attachment represented.
One type of service that is not covered under this SIN and cannot be used as an example is construction. Minor repairs and structural maintenance are considered within scope, but any major new construction or Architect-Engineer Services (as defined by the Brooks Act) are out of scope.
Additionally, offerors must include two relevant project examples, which must demonstrate Continuous Facilities Maintenance (defined as a project of one year or more for a minimum of eight hours per day). If a company is unable to meet these requirements, they won’t be able to be awarded SIN 561210FAC—unless they are offering one of the allowable standalone services.
What Standalone Services are Allowed Under SIN 561210FAC?
Currently under SIN 561210FAC, the only standalone services allowed are HVAC services, Maintenance of Fire Alarm and Fire Suppression Systems; and Elevator/Escalator Inspection and Maintenance Services. These services have their own sets of special requirements that offerors must meet in order to be awarded.
Offerors proposing fire alarm maintenance services must include detailed descriptions of the maintenance services offered, addressing the requirements in the additional attachment “Contractor Requirements, Certifications and Qualification for Fire Alarm and Water Based Fire Suppression”. Additionally, they must submit resumes which include all relevant certifications (such as NICET certifications) for each staff member who will perform this type of work. Furthermore, three project experience examples are required which demonstrate relevant fire alarm maintenance services.
Proposing elevator/escalator inspection and maintenance services involves slightly less robust requirements: while employee resume and certifications are still required, only one relevant project experience example is required.
It’s also important to note that fire alarm and elevator/escalator maintenance services do not have to be offered as standalone services. They can be proposed in conjunction with Complete Facilities Maintenance. When this is the case, project experience examples should demonstrate all service types being offered, and one project can be used as evidence for both Complete Facilities Maintenance and fire alarm or elevator/escalator maintenance.
For instance, an offeror proposing Complete Facilities Maintenance including fire alarm maintenance may only need to submit three project examples total: two which cover both Complete Facilities Maintenance and fire alarm maintenance, and a third example to fulfill the three-project requirement for fire alarm services.
However, if the offeror doesn’t have examples of projects which cover both service types, they may need to submit five projects: two to fulfill the requirements for Complete Facilities Maintenance, and three for fire alarm maintenance.
HVAC maintenance has no additional requirements, but is currently listed as an acceptable standalone service. However, that may change with Refresh #34.
What is Changing in MAS Refresh #34?
Solicitation Refresh #34, which is scheduled for release sometime in mid-November 2026, will bring a significant change to the Facilities SIN. The SIN notes are being revised to remove HVAC Maintenance services as a standalone offering—however, it is not clear what services are defined as HVAC maintenance. The draft version of the updated SIN description adds “HVAC maintenance” as an example of an unacceptable standalone service, but leaves “HVAC services” in the list of allowable standalone services.
At this point, it’s not clear whether the GSA is drawing a distinction between HVAC “maintenance” and HVAC “services”, or if this is simply an oversight in the draft language. GSA has also not released any guidance for current awarded contractors who only offer HVAC maintenance under 561210FAC.
Want to Know More About the Facilities SIN?
For contractors considering adding 561210FAC to their contract, or proposing it as part of a new offer, it’s critical to understand the different types of offerings allowed and the requirements for each. If you’re considering this SIN but still not sure if it’s right for you, reach out to us. One of our expert consultants can help you determine if the facilities SIN is a good fit.
