(1) This section applies where -
(a) no market study notice has been published under section 130A but the CMA considers that it has the power to make a market investigation reference under section 131 and (subject to taking action under this section) intends to make such a reference,
(b) a market study notice has been published under section 130A but no market investigation reference has been made under section 131, or
(c) a market investigation reference has been made under section 131 or 132 but no report under section 136 has been published.
(2) The CMA may accept, from such persons as it considers appropriate, undertakings to take such action as it considers appropriate for the purposes of remedying, mitigating or preventing (to any extent) -
(a) any adverse effect on competition concerned, or
(b) any detrimental effect on customers so far as -
(i) it has resulted from the adverse effect on competition, or
(ii) it may be expected to result from the adverse effect on competition.
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