; (B) the payment of telecommunications provided by the Office of the Sergeant at Arms and Doorkeeper; (C) the payment of stationery supplies purchased through the Keeper of the Stationery; (D) payments to the Postmaster of the Senate; (E) the payment of metered charges on copying equipment provided by the Office of the Sergeant at Arms and Doorkeeper; (F) the payment of Senate Recording and Photographic Services; or (G) the payment of franked and mass mail costs by the Sergeant at Arms and Doorkeeper. (b) Agency contributions There are authorized to be paid from the appropriations account for Expenses of Inquiries and Investigations of the Senate such sums as may be necessary for agency contributions related to the compensation of employees of the committee— (1) for the period March 1, 2017, through September 30, 2017; (2) for the period October 1, 2017, through September 30, 2018; and (3) for the period October 1, 2018, through February 28, 2019.