Regulation 48 Customer declaration where this Chapter appliesI1

determine whether this Chapter applies in respect of a supply contract to which it is party;

if it so determines, send to the supplier a declaration to that effect.

determine whether either of the circumstances in regulation 47(1)(a) applies;

if so, give the customer notice of that determination, drawing this Chapter to the attention of the customer, unless the customer has already sent a declaration under paragraph (1)(b).

when it enters into a supply contract, or

in the case of a supply contract entered into before the scheme introduction date, within the period of 45 days beginning with the scheme introduction date.