Vendor Resources


As the North American leader in environmental and hazardous waste management services, our success is critically dependent on maintaining a best-in-class vendor base, capable of furnishing products and services of superior quality and maximum value.

Clean Harbors seeks vendors who provide consistently high quality products and services, who introduce innovation and creativity, and who deliver sustainable competitive advantages to our business. Vendors can learn more about our requirements in this section and can learn how to partner with us to meet our business goals. We welcome all potential vendors who can add value to Clean Harbors by providing best-in-class products and services on a competitive basis.

Fraud Alert

All current and prospective vendors, please be aware that there have been fraudulent attempts to create a line of credit with vendors using the Clean Harbors name and its principals. Scammers use information taken from publicly published corporate documents. If you receive a request for credit or a purchase order from anyone you do not normally do business with at Clean Harbors, please confirm the order by contacting them.

If you are not a current Clean Harbors vendor, please contact our procurement office to confirm a new request or order at

ACH Payments

The Clean Harbors preferred payment method is via electronic fund transfer. If you are a new or active vendor who is not set up for ACH payment, please contact

Vendor Notice


Clean Harbors has tasked Broniec Associates with managing our annual Accounts Payable audit. They will be requesting Statements of Account from all vendors in order to conduct this review. This process is mandatory in order to retain a favorable status and vendor eligibility. We appreciate your full cooperation with expediting any requests coming from Broniec.

Payment Plus

Clean Harbors has partnered with U.S. Bank to pay our suppliers with automated Visa card payments.  As a Clean Harbors vendor, you may be contacted directly by an outside representative by mail or phone.  Any request you receive with regards to the Payment Plus Visa card initiative, on behalf of Clean Harbors, is an authorized communication.

Vendor Portal


To ensure efficiency throughout the invoice-to-pay process, Clean Harbors uses PaymentWorks to securely exchange information with vendors. As a Clean Harbors vendor, you may be contacted directly by PaymentWorks. Thus, any request you receive from PaymentWorks on behalf of Clean Harbors is an authorized communication.

Benefits of Using Clean Harbors PaymentsWorks Portal

  • Maintain your vendor master information.
  • View the status of invoices you have submitted with a Clean Harbors company-issued purchase order number.
  • Avoid delays in payment due to incorrect check remit address or other critical data.
  • Activate ACH/EFT payments by providing banking information in a secure environment, which will allow Clean Harbors to make payments directly to your bank. (No more waiting for mailed checks.)
  • Review our policies.

New vendors who are contacted by PaymentWorks must complete the online registration form to provide the information necessary for Clean Harbors to release payments.

Vendor Code of Conduct and Ethics

Clean Harbors expects all vendors to maintain high ethical standards; act with integrity, trust, respect, honesty and teamwork; and operate in full compliance with applicable laws, rules and regulations of the countries in which they operate. To learn more, please review our Vendor Code of Business Conduct and Ethics.

Purchasing Policy

Clean Harbors has established procedures, policies, and practices that are designed to lend continuity to our vendor/customer relationships. To learn more, please review our Purchasing Policy.


Purchase Order Terms and Conditions

The Clean Harbors standard pay terms are net 60 days, unless the vendor agrees to discounted pay terms. Our standard discounted pay terms are 3%15 net 60, 2%30 net 60 or 1%45 net 60. A valid purchase order number must be provided at the time of order and must appear on all vendor invoices when issued.

Small Business Development

Clean Harbors is committed to fostering relationships with small businesses. The Small Business Development program is designed to ensure that businesses of diverse backgrounds and ownership have the opportunity to become valued vendors of Clean Harbors.


Use of the Clean Harbors Name

Clean Harbors reserves the right to manage the use of the Clean Harbors name for endorsement or promotional purpose. We do not permit any public announcement of a business relationship between a vendor and our Company without the prior written consent of Clean Harbors or its operating units, except where required by law. This includes news releases, advertisements or the use of our name on a vendor website or in promotional literature. If required by law, the vendor should consult with Clean Harbors in advance.