the relevant planning authority for its approval a report (“the CHP review”) updating the CHP  statement.  (2) Prior to establishing the working group pursuant to sub–paragraph (3), the undertaker must  submit to the relevant planning authority for approval the terms of reference for the working group  together with a list of the organisations, to be invited (such list to include the Greater London  Authority) to attend the working group, such terms of reference to include—  (3) Work No. 1A must not start commissioning until the undertaker has established a working  group pursuant to the approved terms of reference under sub–paragraph (2), that may combine  with the working group established in respect of combined heat and power opportunities from  RRRF.  (4) The CHP review under sub–paragraph (1) must be undertaken by a competent CHP  consultant appointed by the undertaker from the approved list agreed by the working group in  sub–paragraph (2)(b) and must be in accordance with the scope agreed by the working group  established under sub–paragraph (3) and must—  (7) Sub-paragraphs (4) and (5) apply in relation to a revised CHP review submitted under sub- paragraph (6) in the same way as they apply in relation to the CHP review submitted under sub- paragraph (1).  (6) Subject to sub–paragraph (8), on each date during the operational period of Work No. 1A  that is three years after the date on which it last submitted the CHP review or a revised CHP  review to the relevant planning authority, the undertaker must submit to the relevant planning  authority for its approval a revised CHP review.  (5) The undertaker must take such actions (which are technically and commercially viable) as  are included within the timescales specified in the approved CHP review and where the working  group identifies the likely connection point at the site boundary for any district heating to  safeguard a pipework route from Work No. 3 to that point.  41 (d) include a list of actions (if any and in addition to (b)) that the undertaker is required to  take to increase the potential for the export of heat from Work No. 1 and which are  technically and commercially viable.  (a) assess potential commercial opportunities that reasonably exist within a 10 kilometre  radius for the export of heat from Work No. 1 as at the time of submission of the CHP  review;  (b) assess how the opportunities in (a) meet the Combined Heat and Power Quality  Assurance requirements;  (c) state whether or not there is sufficient certainty about the likely district heat network to  enable the undertaker to install the necessary combined heat and power pipework (Work  No. 6(a)) to the boundary of Work No. 6 as shown on the works plans and, if so, the  undertaker must install such pipework to the boundary of Work No. 6 in the timeframe  agreed in the CHP review or any revised CHP review; and  (a) agree the scope of each CHP review;  (b) agree a list of CHP consultants put forward by the undertaker;  (c) engage with the Department for Business, Energy & Industrial Strategy (or such  successor government department with responsibility for energy) and the Heat Network  Investment Programme (or any such equivalent government funding programme) to  identify funding for any financial shortfall identified by any CHP review;  (d) progress the actions in each approved CHP review and to monitor and report on the  progress of those actions to the relevant planning authority;  (e) identify the likely connection point at the site boundary for any district heating;  (f) identify working practices of the working group; and  (g) confirmation that any approvals and agreements of the working group must not be  unreasonably withheld or delayed. 