Each such electric corporation and each municipality shall maintain for at least six years a record of each interruption of service to its customers (other than public street and highway lighting customers and sales to other utilities) having a duration of five minutes or more. Said corporation or municipality shall make such records available for inspection by the department's staff and shall, when requested, provide the staff with information. These records shall be kept in a computerized form.
N.Y. Comp. Codes R. & Regs. Tit. 16 § 97.3