Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

GSA Federal Acquisition Service
Banner Home GSA Advantage
For general questions, contact:
FAS National Customer Service Ctr
Phone: 1-800-488-3111
E-mail: ncsccustomer.service@gsa.gov

Miscellaneous
Complementary Special Item Numbers (SINs)
MAS Multiple Award Schedule - Available offerings include commercial goods and services organized by 12 Large Categories, corresponding Subcategories, and SINs.

MAS Category list:

Download Contractors (Excel)
Miscellaneous - Complementary Special Item Numbers (SINs)
Category Description
238910 Installation and Site Preparation Services - Includes installation and site preparation services ordered in conjunction with buildings and structures, building materials, storage tanks/systems, services for alternative energy solutions or power distribution equipment, fuel dispensing & management systems, and security systems purchased under this schedule contract. For ordering limitations and information, refer to the Special Ordering Procedures/Ordering Guide posted on www.gsa.gov

NOTE: When used in conjunction with a Cooperative Purchasing eligible SIN, this SIN is Cooperative Purchasing Eligible.
ANCILLARY Ancillary Supplies and Services - Ancillary supplies and/or services are support supplies and/or services which are not within the scope of any other SIN on this schedule. These supplies and/or services are necessary to complement a contractor's offerings to provide a solution to a customer requirement. This SIN may be used for orders and blanket purchase agreements that involve work or a project that is solely associated with the supplies and/or services purchased under this schedule.

NOTE: When used in conjunction with a Cooperative Purchasing eligible SIN, this SIN is Cooperative Purchasing Eligible.
ANCRA Ancillary Repair and Alterations - Includes ancillary repair and alteration services ordered in conjunction with the delivery, or installation of products or services. These services are non-complex in nature, such as routine painting, carpeting, simple hanging of drywall, basic electrical or plumbing work, landscaping. For ordering limitations and information, refer to the Special Ordering Procedures/Ordering Guide posted on www.gsa.gov.
NEW Introduction of New Supplies and Services - Includes the introduction of new supplies, technology and services categorically related to items already on GSA contract, which may be in commercial development and/or not yet introduced to the federal government.

NOTE: When used in conjunction with a Cooperative Purchasing eligible SIN, this SIN is Cooperative Purchasing Eligible.
OLM Order-Level Materials (OLM) - OLMs are supplies and/or services acquired in direct support of an individual task or delivery order placed against a Federal Supply Schedule (FSS) program contract or BPA. OLM pricing is not established at the FSS contract, but at the order level. Since OLMs are identified and acquired at the order or BPA level, the ordering contracting officer (OCO) is responsible for making a fair and reasonable price determination for all OLMs using FAR 15.404 techniques for commercial price determinations. Using this procedure, ancillary supplies and services that are unknown at the time of the Schedule contract award may be included and priced at the order level or BPA level.

OLM SIN-Level Requirements/Ordering Instructions:

OLMs are:
- Purchased under the authority of the FSS Program as a special ordering procedure
- Identified at the order or BPA level (either at the time the order is placed or as the requirement for OLMs develop during the course of performance)
- Defined and priced at the ordering activity level in accordance with GSAR clause 552.238-115 Special Ordering Procedures for the Acquisition of Order-Level Materials.
- Only authorized for use in direct support of another awarded SIN.
- Only authorized for inclusion at the order level under a Time-and-Materials (T&M) or Labor-Hour (LH) Contract Line Item Number (CLIN)
- Subject to a Not To Exceed (NTE) ceiling price limited to 33.33% of the total value of the order or BPA

OLMs are not items awarded under ancillary supplies/services or other direct cost (ODC) SINs (these items are defined, priced, and awarded at the FSS contract level)

NOTE: When used in conjunction with a Cooperative Purchasing eligible SIN, this SIN is Cooperative Purchasing Eligible.


elibrary.gsa.gov

An official website of the General Services Administration

Looking for U.S. government information and services?
Visit USA.gov