Collections Referral Network

Join our network.

If you are a collection site or TPA agency and wish to work directly with Redwood Toxicology Laboratory, please join our referral network. We will work with your firm to develop a comprehensive drug testing program that works for you and your clients. For more information, please fill out the form below.

Specimen Collection Referral Sign Up

* Required field(s)

* First Name
* Last Name
* Organization
* Title
Address 1
Address 2

* Phone Number #
* Email Address

  • * Are you a current client?

  • Do you provide collection services?
  • Do you provide Third Party Administration services? Yes No
  • Do you currently use on-site drug testing devices? Yes No
  • Are you using other providers for your drug testing? Yes No
  • If yes, who are you using?
  • Does your agency respond to local, county and state bids and RFP's on a regular basis? Yes No
  • May RTL refer your services to other agencies within your area? Yes No
  • May RTL contact your agency with information regarding new services, products and promotions? Yes No


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Contact Us

Laboratory: 800-255-2159

Products: 877-444-0049