“carrier bag” (“bag siopa”) has the meaning given by section 54;

“carrier bag regulations” (“rheoliadau bagiau siopa”) has the meaning given by section 55;

“the charge” (“y tâl”) has the meaning given by section 55;

“charitable purpose” (“diben elusennol”) is to be interpreted in accordance with section 57(8);

“gross proceeds of the charge” (“enillion gros o'r tâl”) means the amount received by a seller of goods by way of the charge;

“net proceeds of the charge” (“enillion net o'r tâl”) means a seller's gross proceeds of the charge reduced by such amounts as may be specified;

“seller of goods” (“gwerthwr nwyddau”) is to be interpreted in accordance with section 56;

“specified” (“penodedig”) means specified in carrier bag regulations.