Mo. Rev. Stat. § 71.288: Restrictions on outdoor advertising — fee.

1. Any city or county shall have the authority to adopt regulations with respect to outdoor advertising that are more restrictive than the height, size, lighting and spacing provisions of sections 226.500 to 226.600.

2. No city or county shall have the authority to impose a fee of more than five hundred dollars for the initial inspection of an outdoor advertising structure, nor may the city or county impose a business tax on an outdoor advertising structure of more than two percent of the gross annual revenue produced by the outdoor advertising structure within that city or county.