every building where any change from one use to another within the same division in a major occpancy group which results in an increase in the occupant load or fire ‘load or both, _ (b) Every building which requires a Certificate of Occupancy shall comply with the construction requirements for the major occupancy group to be housed therein, except that the authority having jurisdiction may issue a Certificate of Occupancy for a building which varies in a minor respect from the regulations of this By-law, where, in its opinion, such variation will substantially accomplish the ‘objects of this By-law. Every application for a Certificate of Occupation shall contain: i} certification by the owner or his agent or Architect or Engineer in the case of new construction, that the building or applicable portion thereof conforms to the approved plans and the requirements of this By-law; the anticipated date of completion; classification of the building as to types of occupancies; number of stories in the building; gross floor area of each storey, and the allowable live loads for each floor area; . such other information as may be required to illustrate the essential features of the building. At least 24 hours prior to a requested snspection for a Certificate of Occupancy, the certification required in Clause (41) of subsection (c) shall be supported by submission of the following reports: (i) proof of compliance for all materials, equipment or methods of construction, when required by ‘the authority having jurisdiction; where the complexity of the project or portions thereof required supervision by an Architect or Professional Engineer, as a condition of issuance of the building permit, proof that the Engineer or Architect has complied with all requirements of the Provincial Code and this By-law; ; a "Contractor's Material and Test Certificate", once the ‘sprinkler systems have been flushed, inspected, and tested to meet NFPA-13 standards; wee