access undertaking decision

means:

(a)  a decision under section 44ZZA to accept or reject an access undertaking; or

(b)  a decision under section 44ZZA to consent or refuse to consent to the withdrawal or variation of an access undertaking; or

(ba)  a decision under subsection 44ZZAAB(7) to consent or refuse to consent to the revocation or variation of a fixed principle included as a term of an access undertaking; or

(c)  a decision under section 44ZZBB to extend or refuse to extend the period for which an access undertaking is in operation.