General intent. As a condition of approval for any building or use, and as a condition of continued occupancy of any building or installation utilized for nonresidential purposes, the applicant shall supply evidence satisfactory to the Board or to the Construction Official, whichever is applicable, that the proposed building or installation shall conform fully with all of the applicable performance standards established herein. As evidence of compliance, the Board may require certification of tests by appropriate government agencies or by recognized testing laboratories, all costs to be borne by the applicant. The Board may require that specific types of equipment, machinery or devices be installed or that specific operating procedures or methods be followed if government agencies or testing laboratories examining the proposed operation shall determine that the use of such specific types of machinery, equipment, devices, procedures or methods is required in order to assure compliance with the applicable performance standards. Permits and certificates required by other government agencies shall be submitted to the Planning Board as proof of compliance with applicable codes.