Code of Conduct

Oldcastle Infrastructure, along with its sibling CRH companies, is committed to the highest standards of safety, customer service, ethical conduct, and environmental protection. Not only are our employees held to these standards, but Oldcastle Infrastructure has established a Supplier Code of Conduct to set the standard of behavior for all suppliers conducting business with us.

Establishing a Supplier Relationship

To be considered as part of Oldcastle Infrastructure’s Supplier Diversity program, companies must be owned, operated, and controlled by a member of one of the following groups: Minority, Women, Veteran, LGBTQ+, Disability, Veteran-Disabled, or Service-Disabled.

Ownership by any of these groups means that the business is at least 51% owned by such individuals, or in the case of a publicly owned business, at least 51% of the stock is owned by one or more such individuals. The management and daily operations must be controlled by those group members.

All candidates who wish to be considered as small, small disadvantaged, small veteran-owned, small HUB zone, minority, or women-owned suppliers to Oldcastle Infrastructure must be certified by a valid council or government agency such as:

Oldcastle Infrastructure requires that all suppliers are approved, registered, and have acknowledged our terms & conditions before providing any goods or services. The New Vendor Authorization Packet contains our process for registering and approving new vendors. Please work with your Supply Chain / Purchasing Agent to complete & submit.

New Vendor Authorization Package

Oldcastle Infrastructure requires that all suppliers understand and acknowledge our terms and conditions.  These terms & conditions apply to all purchase orders issued by Oldcastle Infrastructure.

 Supplier Terms & Conditions

Oldcastle Infrastructure strictly enforces our No PO, No Pay policy which requires that a purchase order is issued for all goods and services ordered.

How it works. We require all suppliers to request a purchase order number from their Oldcastle Infrastructure business partner prior to issuing goods or services. Invoices received without a purchase order number will not be processed. Instead, the invoice will be rejected requiring suppliers to send a new invoice with a purchase order number included. This will result in delays in processing payment.

In addition to the purchase order number, a purchaser’s name and contact number must be clearly displayed on the invoice.

Go electronic.  To better facilitate speed of processing and communication, we also encourage our suppliers to send invoices electronically.  In addition to the No PO, No Pay policy, we are making technology improvements to enable better processing efficiency. Sending invoices electronically allows for more timely receipt, processing and payment.  Invoices not submitted through our Coupa Supplier Portal must be sent to:

The format of a vendor’s invoice is a key input into receiving timely payment. Though we don’t have a requirement for a ‘standard’ invoice layout, learn more about the elements we require on vendor invoices to process for payment.

Invoice Template Example

Our Coupa Supplier Portal

Effective January 2021, Oldcastle Infrastructure has launched a Coupa Supplier Portal, where approved and registered suppliers can view purchase orders and invoices, submit invoices, check payment status, and manage invoice disputes.

Frequently Used Links, Trainings and Materials:

How to Contact Us

Supplier Inquiries:
For inquiries, our AP Support team is available from 8 AM to 8 PM, Monday – Friday EST.

For Phone Inquiries:

For Email Inquiries:
Allow up to 24 hours for a response.

Submitting Your Invoice:
All invoices must be submitted electronically through our Coupa Supplier Portal (preference) or                         Please allow for  10 – 14 days of processing time for emailed invoices.


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