(1) The local authority shall have the right to test or to have tested any material or thing used or to be used in the construction of any building or sewerage system under construction or to be constructed in order to determine whether such material or thing complies with the provisions of these by-laws.

(2) For the purpose of subsection(1) the local authority may, at any time and as often as it is reasonably necessary for the purpose of so testing the material or thing, and without prior notice to the builder or plumber, remove from the site concerned so much of the material or thing as is reasonably necessary to serve as a sample.

(3) If any material or thing tested in accordance with subsection (1) does not comply with the requirements of these by-laws, the local authority may serve a notice upon the owner of the building or sewerage system concerned-

a) stating in what respects such material or thing does not comply with such requirements; and

b) prohibiting any person from making any further use of the material or thing for the purpose for which it was to be used or was being used in the construction of the building or sewerage system; and

c) ordering the removal of any such material or thing which has been incorporated in the building.

(4) If the local authority serves a notice in terms of subsection(3), the builder or plumber shall, within such period as may be specified in the notice, remove such material or thing from the site, unless the local authority permits such material or thing to be used for some other specified purpose.

(5) Where a person desires to obtain approval to use for a particular purpose or material or thing which is not specifically permitted or prescribed in these by-laws, and the local authority is prepared to consider such a request, the person concerned may-

a) submit a report from a source acceptable to the local authority on the sustainability of such material or thing; or

b) submit such material or thing for testing by the local authority; or

c) if required by the local authority, cause to have such material or thing tested by a person acceptable to the local authority.

(6) Any costs involved in tests carried out in terms of subsection(5) if the report submitted the request, notwithstanding the provisions of section 57.

(7) The local authority shall permit the use of the material or thing referred to in subsection (5) if the report submitted or the results of the tests demonstrate that such material or thing is at least as suitable for the particular purpose as a material or thing permitted or prescribed in these by-laws for that purpose.