Citation, commencement and interpretation  Amendment of the Principal Regulations  “Obligation to complete a supplier transfer  1. —(1) These Regulations may be cited as the Electricity and Gas (Standards of Performance)  (Suppliers) (Amendment) Regulations 2020 and come into force on 1st May 2020.  (2) In these Regulations, “the Principal Regulations” means the Electricity and Gas (Standards of  Performance) (Suppliers) Regulations 2015( a ).  2.  In regulation 2(1) (General interpretation) of the Principal Regulations—  ““supplier transfer” means in relation to any domestic premises at which a supplier is  supplying gas or electricity, the transfer of responsibility for the supply of gas or  electricity to a new supplier;”.  ““prepayment meter” means any meter operating in a mode that requires a customer to  pay for the consumption of gas or electricity through that meter in advance of that  consumption;”  3.  In regulation 4 (Faulty meters) of the Principal Regulations, in paragraph (6), omit the  definition of “prepayment meter” and the preceding “; and”.  4.  In regulation 5 (Faulty prepayment meters) of the Principal Regulations, in paragraph (7),  omit ““prepayment meter” has the meaning given in regulation 4(6);”.  5.  After regulation 6 (Reconnection) of the Principal Regulations insert—  6ZA. —(1) This regulation applies where a customer requests a supplier transfer.  (2) This regulation does not apply where the supplier transfer cannot be completed  because—  (3) Where this regulation applies the new supplier must complete the supplier transfer—  (a) in the definition of “new supplier”( b ), before “responsibility” insert “, or will have,”;  (b) after the definition of “old supplier” insert—  (c) after the definition of “supplier” insert—  (a) the customer notifies the new supplier that they do not wish the supplier transfer to  take place;  (b) a previous supplier transfer is being processed in relation to the same meter point;  or  (c) the customer’s current supplier objects to the supplier transfer.  (a) within the period of 15 working days beginning with the day of receipt by the new  supplier of sufficient information to—  (i) confirm the supplier transfer relates to the customer who requested it, and  (ii) identify the meter point or meter points to which the supplier transfer request  relates;  (b) where the customer has requested a supplier transfer takes places on a date after  the end of the period referred to in sub-paragraph (a), on the date requested; or  (c) where the customer has existing debt on a prepayment meter and the new supplier  agrees to be assigned that debt, within the period of 15 working days beginning  with the day of that assignment being agreed between the old and new supplier, but  ( a ) S.I. 2015/1544 as amended by S.I. 2019/218.  ( b ) Definition of ‘new supplier’ was inserted by regulation 2(2) of S.I. 2019/218.  2