Preemption of State and local laws
Primary source
Verbatim text below is from the Electronic Code of Federal Regulations (eCFR), a public-domain U.S. government work. Always verify the current version with the eCFR before relying on it for any legal matter.
Full Text
(a) Under section 436 of the Plant Protection Act (7 U.S.C. 7756), a State or political subdivision of a State may not regulate in foreign commerce any plant or plant product in order to control, eradicate, or prevent the introduction or dissemination of a biological control organism, plant pest, or noxious weed within the United States.
(b) Therefore, in accordance with section 436 of the Plant Protection Act, the regulations in this part preempt all State and local laws that are inconsistent with or exceed the regulations in this part.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.