Puc 508 shall not restrict or limit the commission's power to disallow any expense as a charge to ratepayers which the commission finds to be unjust, unreasonable, excessive, unwarranted or imprudent pursuant to RSA 378.
Source. (See Revision Note # 1 and Revision Note #2 at chapter heading for Puc 500) #13794, eff 10-25-23