Do you charge sales tax?

Sales tax is only applied to orders shipping to Oklahoma except for on two larger assessment kits that we sell (they indicate on their webpage that they will be taxed both in and out of OK). Sales tax is not applied to all other products shipping outside Oklahoma. If you are a tax exempt organization shipping to Oklahoma (or California for those two kits), please create an account on our site, then fax your proof of tax exempt status to us at 1-866-516-8160 or attach it to the Contact Us form located at the top of our website. Also, on your correspondence, please write the email address you used to establish your online account with us. We will flag your account as tax exempt so all future quotes and orders will not have sales tax applied. This exemption is linked directly to the email address used to establish the account. If another person from your organization wishes to establish an account, we will need to be notified so we can flag their account as well.