Idaho Code § 22-3426
Notwithstanding any other provision of law to the contrary, no city, county, taxing district or other political subdivision of this state shall adopt or continue in effect any ordinance, rule, regulation, resolution or statute regarding pesticide sale, use, or application including without limitation: registration, notification of use, advertising and marketing, distribution, application methods, applicator training and certification, storage, transportation, disposal, disclosure of confidential information or product composition. Nothing contained in this section shall prohibit or limit fire prevention personnel or fire extinguishing personnel of a city, county or fire protection district from conducting inspections pursuant to or enforcing the International Fire Code.
Idaho Code § 22-3426