Shipping giant FedEx has filed a lawsuit against the Department of Commerce over export rules it claims require the company to “police the contents” of customer deliveries and enforce the Trump administration’s trade blacklist.

The lawsuit follows Chinese telecommunications firm Huawei’s decision to reevaluate its use of Memphis, Tennessee-based FedEx after packages sent from Japan and bound for China were instead diverted to the U.S. FedEx said the packages were accidentally misrouted and apologized.