Regulation 2

that is approved by the Board pursuant to an application under regulation 5, as may be amended with the permission of the Board under regulation 6; and

that has not ceased to be an approved plan under regulation 7;“commencement window period”, in relation to a specified activity, means the period mentioned in regulation 8 during which the activity must commence;“construction survey” means a survey of —

the part of the public sewer corridor in which a specified activity is proposed to be or has been carried out; and

such other part of the public sewer corridor as the Board considers may be affected by the carrying out of the specified activity,for the purpose of establishing the location, depth and structural condition of the public sewerage system in that part of the public sewer corridor;“contractor”, in relation to a specified activity, means a person who carries out the activity for the person’s own account, or for another person (whether or not for any reward), but does not include a person who carries out the activity under a contract of service;“plan”, in relation to any specified activity, includes any drawing, detail, diagram, calculation, and structural detail and calculation, showing or relating to the activity;“public sewer corridor” means the land and space bounded by 2 vertical planes as illustrated in the First Schedule, through which any sewer, main or pipe of a public sewerage system runs (whether under, on or above ground);“qualified person” has the same meaning as in section 2(1) of the Building Control Act (Cap. 29);“registered professional engineer” means a person who is registered under the Professional Engineers Act (Cap. 253) as a professional engineer in respect of one or more of the following:

civil engineering;

structural engineering;

geotechnical engineering;“responsible person”, in relation to any specified activity, means any of the following:

the contractor of the activity;

the qualified person or registered professional engineer appointed for the purpose of preparing and submitting the application for the approval of the plan for the activity under regulation 5;“supervisor” means the person appointed as such under regulation 9(2);“the Commissioner’s approval”, in relation to any plan for any specified activity, means the approval of the Commissioner of Building Control for the plan under section 5 of the Building Control Act.