Conn. Gen. Stat. § 4-98

(b) Notwithstanding the provisions of subsection (a) of this section, the Comptroller may delegate to any budgeted agency the certification and transmission requirements of purchase orders using authorized electronic methods, provided such agency transmits the information contained in such purchase orders to the Comptroller. Upon receipt of any such electronic transmission, the Comptroller shall immediately charge the same to the specific appropriation of the budgeted agency issuing the same and shall electronically certify that the purchase is approved and recorded, if the proposed purchase is within the applicable specific appropriation and the budgeted agency has unencumbered funds sufficient to defray such expenditure. Upon receipt of the Comptroller's certification, the budgeted agency shall transmit the purchase order to the vendor named in the purchase order.

(c) Notwithstanding the provisions of subsection (a) or (b) of this section, the Comptroller may allow budgeted agencies to use purchasing cards for purchases not exceeding two hundred fifty thousand dollars, unless such agency receives written approval from the Comptroller and the Commissioner of Administrative Services to exceed such amount. No budgeted agency, or any official, employee or agent of a budgeted agency, shall incur any obligation using such a card, except in accordance with procedures established by the Comptroller.

Cited. 200 C. 386.