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.
N.H. Admin. Code § Puc 508.04
(See Revision Note at Chapter heading for Puc 500) #6445, eff 1-28-97; ss by #8259, eff 1-19-05; ss by #10334, eff 5-10-13