The commission shall:
Any such special rate or tariff shall be so designed as to recover the incremental cost of providing service to such customers and to contribute to the common costs which otherwise would be borne by other customers.
In every case in which the commission chooses to have the audit provided for in this subdivision or pursuant to subdivision fourteen of section sixty-five of this article performed by independent auditors, it shall have authority to select the auditors, and to require the company being audited to enter into a contract with the auditors providing for their payment by the company. Such contract shall provide further that the auditors shall work for and under the direction of the commission according to such terms as the commission may determine are necessary and reasonable.
For the purposes of this subdivision, capacitors, transformers, and equipment designed to use the PCB-free mineral oil dielectric fluids shall be presumed to contain concentrations below five hundred parts per million of PCBs, unless the unit has been serviced with fluid which contains five hundred parts per million or greater of PCBs, or there is any other reason to believe that the unit contains or was ever mixed with fluid with a concentration level of five hundred parts per million or greater or unless testing has specifically shown otherwise.
N.Y. Pub. Serv. Law § 66