Frequently Asked Questions

You can pay an invoice online here.  Just input your invoice number and amount and proceed with the electronic payment. You may also pay by wire transfer or by check by contacting us for details.

Yes, we do. A PO (or full payment via our link, Pay an Invoice) is required prior to starting project work. If your company requires direct invoicing, please contact us here.

We would be happy to send you a copy of our W-9 when you contact us here.

Our company offices, Training Center, Test Facility, and Proving Grounds are all located in Las Cruces, New Mexico, which is the southwestern part of the United States. Please see our Visitor’s Guide for detailed information or see our address on Google Maps.

5605 Dona Ana Road
Las Cruces, New Mexico 88007

You will need to contact us via phone or email in order to create a project.  We will then email you a project number and Cost Estimate.  When you send the test articles, please include the project number.  Your company will pay all shipping charges.

Please send us a copy of the error message through our Contact Us form. Once received, we will whitelist your server and contact you.  Please include your phone number.

You can contact us or your WHA representative to request access to our FTP server.

All emails have a SafeUnsubscribe link at the bottom. You can be instantly removed by clicking that link. If you would like to update your email address, update your profile or change preferences, please use the link next to the SafeUnsubscribe link at the bottom of your email.

Please contact us to let us know if you find something that looks out of place.

This website is fully “responsive,” meaning that all content should automatically scale for readability on mobile and tablet devices. Please contact us if you experience any difficulties.

All our eTraining demonstrations and courses are available at

Please contact us via phone or email to discuss your training needs and schedule, or browse the courses in our catalog and register for one of our remote or in-person training events.

For our eTraining options, you can pay with a credit card. For OnSite or InHouse courses, you can pay via wire transfer, check, or credit card.