79. Cancellation of initial notice.

If, at a time when an initial notice1 is in force, the approved inspector2:

  1.  

    (1)     becomes or expects to become unable to carry out, or to continue to carry out, his functions3 with respect to any of the work to which the initial notice relates4;

  2.  

    (2)     is of the opinion that any of the work is being so carried out that he is unable adequately to carry out his functions with respect to it5; or

  3.  

    (3)     is of the opinion that there is a contravention6 of any provision of building regulations7 with respect to any of that work, and: