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GSA Federal Acquisition Service
Banner Home GSA Advantage
For general questions, contact:
National Customer Service Center
Call: 1-800-488-3111
Email: 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 as: .XLS File | .CSV File To see Download Instructions/information click here
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) - Order-level materials (OLMs) means products, services, and/or solutions (a combination of products and/or services) acquired in direct support of an order placed against a FSS contract, including orders under FSS BPAs, when the products, services, and/or solutions are not known at the time of FSS contract or FSS BPA award. OLM pricing is not established in FSS contracts or FSS BPAs.


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


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