Neb. Rev. Stat. § 2-2643.02

A license holder shall comply with the Pesticide Act, the rules and regulations adopted and promulgated pursuant to the act, and any order of the director issued pursuant to the act. A license holder shall not interfere with the department in the performance of its duties. A license holder acting as a supervisor to a noncertified applicator is required to comply with the requirements of subsections (4), (5), and (6) of section 2-2642 .