11. After regulation 13 of the Charges Regulations (exemption from charges: risks to public health) insert—
13A. No charge is payable under regulation 3(1) or (2) or 4(1) in respect of the supply of any drug or appliance in accordance with a SSP if, as a consequence of the supply being in accordance with a SSP instead of being in accordance with a prescription form or an associated batch issue, the patient receives a smaller quantity of the drug or fewer appliances than the quantity originally ordered.”.