(a) direct that tests of materials, devices, construction methods, structural assemblies or foundation conditions be made, or sufficient evidence or proof be submitted, at the expense of the owner, where such evidence or proof is necessary to determine if materials, devices, construction methods, structural assemblies or foundation conditions meet the requirements of this Regulation, and

(b) revoke, suspend or refuse to issue a development and building permit where, in opinion of the building inspector, the results of the tests referred to in paragraph (a) do not meet the requirements of this Regulation.

(a) direct that tests of materials, devices, construction methods, structural assemblies or foundation conditions be made, or sufficient evidence or proof be submitted, at the expense of the owner, where such evidence or proof is necessary to determine if materials, devices, construction methods, structural assemblies or foundation conditions meet the requirements of this Regulation, and

(b) revoke, suspend or refuse to issue a development and building permit where, in opinion of the building inspector, the results of the tests referred to in paragraph (a) do not meet the requirements of this Regulation.