obligation to complete a supplier transfer (regulation 6ZA), avoidance of erroneous transfer  (regulation 6ZB) and provision of a final bill (regulation 6CA).  Regulation 7 inserts provisions into regulation 9 of the Principal Regulations, in respect of  exemptions and limitations to supplier payment obligations for failure to meet the new  performance standards.  © Crown copyright 2020  Printed and published in the UK by The Stationery Office Limited under the authority and superintendence of Jeff James,  Controller of Her Majesty’s Stationery Office and Queen’s Printer of Acts of Parliament.  5