Nebraska Revised Statute 37-524.02
(1) No person shall possess, import, export, purchase, sell, or transport aquatic invasive species except when authorized commission personnel or the owner of a conveyance, or a person authorized by such owner, is removing an aquatic invasive species from a conveyance to be killed or immediately disposed of in a manner determined by the commission. The commission shall adopt and promulgate rules and regulations governing the inspection, decontamination, and treatment of conveyances capable of containing or transporting aquatic invasive species.
(2) Any person who (a) fails or refuses to submit to an inspection of a conveyance requested by an authorized inspector or (b) refuses to permit or prevents proper decontamination or treatment of a conveyance as prescribed by the authorized inspector is guilty of a Class III misdemeanor and upon conviction shall be fined not less than five hundred dollars. Such person's conveyance shall also be subject to impoundment.