Upon receipt of the Direct Mail Form, the seller is relieved of all obligations to collect, pay or remit the applicable tax and the purchaser is obligated to pay or remit the applicable tax on a direct pay basis. A Direct Mail Form shall remain in effect for all future sales of direct mail by the seller to the purchaser until it is revoked in writing.
Upon receipt of information from the purchaser showing the jurisdictions to which the direct mail is delivered to recipients, the seller shall collect the tax according to the delivery information provided by the purchaser. In the absence of bad faith, the seller is relieved of any further obligation to collect tax on any transaction where the seller has collected tax pursuant to the delivery information provided by the purchaser.
Okla. Stat. tit. 68, § 1354.29