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Central Plateau Cleanup Company
Suppliers & Contractors
Doing Business with CPCCo

CPCCO Contractor Prerequisites

It is Central Plateau Cleanup Company's (CPCCo) preference to do business with contractors who are responsible suppliers of products and services with a proven record of successful contract performance. Prospective contractors must be responsive to the solicitation requirements and meet responsibility criteria appropriate for the circumstances as described in FAR 9.1.

In addition, contractors must complete the CPCCo Vendor Registration process, register as a contractor with the federal government, verify employee eligibility using E-verify, complete CPCCo representations and Certifications for each proposal and not be barred from doing business with the Government. 


Representations and Certifications

Prospective contractors are required to submit a signed certification with their proposals. Certification involves topics such as SBA business size status, EEO compliance and substance abuse. Special Provision SP-16.


Working Onsite

Workers and Visitors to the Hanford Site must understand and comply with Site Access Requirements.

Contractors with personnel working on site must accept and comply with special contract provisions for work on site. Included are items such as security requirements, environmental compliance and safe work practices. Special Provision SP-5.  This also includes requirements relative to substance abuse. Notwithstanding recent changes in Washington State law, marijuana remains prohibited under federal law and on the Hanford Site.

Contractors are responsible for compliance by all assigned personnel, including subcontractor and support personnel.


Ethical Conduct Expectation

Contractors are responsible for maintaining satisfactory standards for personnel qualifications, performance, conduct, and business ethics under its own personnel policies consistent with FAR part 3.1000. Contractors must certify compliance before any award can be made by submitting a signed Representation and Certification form (ref. SP-16). Gifts and Gratuities are prohibited (ref. letter CPCC-2201042) 


DUNS Number

A DUNS number is a unique nine-digit identifier that is provided and maintained exclusively by Dun & Bradstreet (D&B). There is no cost to obtain a DUNS number and doing so verifies the existence of a business entity and ensures the entity is listed in D&B's global database. Contractors are NOT required to have a DUNS Number, though it is useful for checking business's financial health. Visit the Dun & Bradstreet DUNS Number site for more information.

Unique Entity ID

As of April 4, 2022, the federal government began identifying contractors by Unique Entity ID (UEI) rather than DUNS Number. The UEI is a 12-character alphanumeric identifier assigned to contractors by


System for Award Management (SAM) is the primary registrant database for the U.S. Federal Government. SAM collects, validates, stores, and disseminates data in support of agency acquisition missions, including Federal agency contract and assistance awards. Both current and potential federal government registrants are required to register in SAM in order to be awarded contracts by the federal government. Registrants are required to complete a one-time registration to provide basic information relevant to procurement and financial transactions. Visit the 
System for Award Management (SAM) website for registration information.    


E-Verify is an Internet-based system that allows an employer, using information reported on an employee's Form I-9, to determine the eligibility of that employee to work in the United States. CPCCo contractors are required to comply with FAR 52.222-54 and verify their employees eligibility. Visit the E-Verify website for registration information.

Vendor Registration

After completing the above requirements, vendors must register in Hanford Vendor Registration to do business with CPCCo. If you need assistance, please send a message to


Once your business has completed the steps to becoming an authorized contractor you are then able to submit proposals in response to Requests for Proposal, Requests for Information and Expressions of Interest. Current opportunities are posted on the Current Solicitations & Requests for Proposal page.

Sustainable Acquisition, Environment Protection, Green Purchasing

Contractors are expected to provide products and services in a manner that promotes the expanded use of green products, reduces greenhouse gas emissions and protects the environment. In accordance with DEAR clause 952.223-78  Sustainable Acquisition Program, applicable products provided or acquired in performance of this contract shall be environmentally preferable, which include recycled content, bio-based, energy efficient (Energy Star or FEMP designated products),  non-ozone depleting alternative products or water efficient (plumbing) products.

Contractor will support CPCCo’s Environmental Management System in performance of this contract and provide reports and data about sustainable acquisition efforts as required by the FAR clauses, DEAR clauses and Executive Orders referenced in contract provisions directly to CPCCo’s Environmental Compliance Officer for consolidation and reporting to the DOE.


Procurement Technical Assistance Center (PTAC)

The Washington State PTAC provides technical assistance to contractors seeking to do business with the federal, state and local governments. Visit  for more information.



Last Updated 05/08/2024 3:39 PM