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 advantage 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.
To ensure efficiency throughout the invoice-to-pay process, Clean Harbors uses PaymentWorks to securely exchange information with vendors. As a vendor to Clean Harbors, you may be contacted directly by PaymentWorks. 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.
Vendors new to Clean Harbors who are contacted by PaymentWorks must complete the online registration in order to provide the required information necessary for Clean Harbors to release payments.
Download the Clean Harbors PaymentWorks new vendor manual
View our list of Clean Harbors companies
Vendor Code of Conduct and Ethics
All vendors to Clean Harbors are expected, in all of their activities, to maintain high ethical standards, acting with integrity, trust, respect, honesty and teamwork and to 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.
Download the Clean Harbors Vendor Code of Business Conduct and Ethics - English
Download the Clean Harbors Vendor Code of Business Conduct and Ethics - En Français
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.Learn more
Purchase Order Terms and Conditions
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.
Download Clean Harbors purchase order terms and conditions
Download Safety-Kleen purchase order terms and conditions
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 to Clean Harbors. LEARN MORE
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.
View our United States credit references
View our Canadian credit references - English
View our Canadian credit references - En Français