NAC Accredited Cooperatives

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The cooperative programs below have met all requirements of the NIGP Accredited Cooperative program.

U.S. Communities Government Purchasing Alliance

Program Type:            Lead Agency
Lead Agency Type:     Public Entity
Accredited Through:    June 30, 2020

Program Performance by NAC Domain

Aggregated results for each domain and related sub-domain are provided in the expandable sections below.

Program Performance by Public Procurement Theme

The results below reflect program performance relative to cooperative procurement themes that are of special interest to government entities when considering a cooperative contracting option.

Viewing performance by theme is provided simply as an alternative approach for assessing cooperative program effectiveness in support of public procurement values and practices. This is not a formal element of NAC assessment or otherwise contributes to the accreditation award determination.

About NAC Accreditation

The NAC standard and its requirements for accreditation award are rigorous.  Accreditation requires that the cooperative program’s management, procurement agencies and contracts reviewed each achieve scores greater than or equal to 90% of the possible points when assessed against the relevant domain of criteria.

NAC Accreditation is a tremendous achievement for every program that earns it.  Nevertheless, prospective users of any cooperative program and its contracts are cautioned to always conduct the due diligence necessary to identify that the contract(s) they use meet the legal and operational requirements of their agency.

For more information about NAC cooperative program accreditation, contact

NIGP Cooperative Accreditation Criteria - NAC

NIGP's Cooperative Accreditation Program


NIGP Newsroom - Press Releases and Important News Itesm


June 26, 2017 - U.S. Conference of Mayors calls on elected officials to promote the use of NIGP Accredited Cooperatives as the first source when using cooperative purchasing.

View Resolution


Global Best Practice

Use of Cooperative Contracts for Public Procurement

Position Paper 193 x 204
Cooperative Procurement: Great Value (Great Confusion)


Cooperative Purchasing Programs

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