(1) It is a condition of the supply or use of any agricultural produce intended for use as stockfood that the level of any substance in the agricultural produce must not exceed the maximum permitted concentration.(2) It is a condition of the supply or use of any agricultural produce intended for use as stockfood that the level of any residue of a chemical product in the agricultural produce must not exceed (a) the level for the chemical product shown against the appropriate feed commodity in the Animal Feedstuffs Residue Standard; or(b) if no such level is shown in that Standard, the level which the Registrar has determined by (i) notice published in the Gazette or a newspaper circulating in the State; or(ii) written notice provided to the supplier or user.(3) A person who contravenes a condition specified in this regulation is guilty of an offence and liable on summary conviction to (a) in the case of a condition specified under subregulation (1) , a penalty of a fine not exceeding 100 penalty units; or(b) in the case of a condition specified under subregulation (2) , a penalty of a fine not exceeding 50 penalty units.