PLEASE SUBMIT SAMPLES TO OUR MAILING ADDRESS: 200 S. MAIN STREET, SUITE 130-150, SEBASTOPOL, CA 95472

Shipping and Receiving

If you ordered through the LeafWorks website and the test ordered requires the use of a submission kit, , you will receive an email with a tracking number associated with your order. Our sex testing turnaround is 2-5 business days. If your order is more than 1000 samples we provide rolling delivery of results as they are ready. Pathogen testing takes 2-5 business days. LeafWorks Supply Chain Verification Testing takes 2-4 weeks.

If you ordered a test through the website that requires a submission kit, use the return shipping label provided in your test kit. Otherwise, please mail your samples to 200 S. Main Street, Suite 130-150, Sebastopol CA 95472.

Yes, we ship submission kits anywhere in the world. Our submission kits are legal for mailing both outbound and inbound, as we do not accept any material that has >0.3% THC.

Yes. Our submission kits are legal for mailing samples back for testing.

We absolutely do! Come to 130 S High St, Sebastopol, CA 95472 across from the Wells Fargo parking lot in Sebastopol during normal business hours, or we have an after-hours Drop Box located on the corner of Bodega Ave and High St (7203 Bodega Ave) under the alcove.

When we receive your sample, we send you an email from info@leafworks.com confirming receipt. Be sure to check your spam folder if you have not received a notification email

Your cannabis DNA testing results are sent via pdf from info@leafworks.com to the email you provided.

Our mailing address to receive samples is 200 S Main St, Suite 130-150, Sebastopol CA 95472.

We offer USPS First Class, USPS Ground Advantage, and USPS Priority Mail for domestic shipping. USPS First Class Mail typically delivers within 3 to 5 business days, Ground Advantage within 2 to 5 business days, and Priority Mail within 2 to 3 business days, all with tracking included. Available shipping options and rates are displayed during the checkout process. Please note that LeafWorks is not responsible for shipping delays once a package has been handed over to USPS, as we do not have control over the delivery process once it is in transit.

LeafWorks is not responsible for shipping delays due to USPS. Non-delivery within the window needs to be taken up with USPS by the client for any refund, and LeafWorks is not liable. We cannot control the efficiency of the postal service.