7 U.S. Code § 196 - Statutory trust established; livestock
It is hereby found that a burden on and obstruction to commerce in livestock is caused by financing arrangements under which packers encumber, give lenders security interest in, or place liens on, livestock purchased by packers in cash sales, or on inventories of or receivables or proceeds from meat, meat food products, or livestock products therefrom, when payment is not made for the livestock and that such arrangements are contrary to the public interest. This section is intended to remedy such burden on and obstruction to commerce in livestock and protect the public interest.
All livestock purchased by a packer in cash sales, and all inventories of, or receivables or proceeds from meat, meat food products, or livestock products derived therefrom, shall be held by such packer in trust for the benefit of all unpaid cash sellers of such livestock until full payment has been received by such unpaid sellers: Provided, That any packer whose average annual purchases do not exceed $500,000 will be exempt from the provisions of this section. Payment shall not be considered to have been made if the seller receives a payment instrument which is dishonored: Provided, That the unpaid seller shall lose the benefit of such trust if, in the event that a payment instrument has not been received, within thirty days of the final date for making a payment under section 228b of this title, or within fifteen business days after the seller has received notice that the payment instrument promptly presented for payment has been dishonored, the seller has not preserved his trust under this subsection. The trust shall be preserved by giving written notice to the packer and by filing such notice with the Secretary.
For the purpose of this section, a cash sale means a sale in which the seller does not expressly extend credit to the buyer.