A gas market code may include any of the following rules in relation to a gas market participant dealing with another gas market participant, if the dealing is or relates to gas market conduct:
(a) rules about how a gas market participant deals with another gas market participant;
(b) rules requiring a gas market participant to deal with another gas market participant in a specified manner, including in good faith;
(c) rules about the matters that, for the purposes of a gas market code, must, may or must not be taken into account in determining whether a gas market participant is dealing with another gas market participant in good faith;
(d) rules about the period within which a gas market participant does something in dealing with another gas market participant, including the period within which a gas market participant responds to a request made by another gas market participant.