Opinion by

The Department of Transportation, Bureau of Traffic Safety (Department), appeals an order of the Court of Common Pleas of Allegheny County which sustained the appeal of Christopher J. Bittner from a one-year suspension of his operating privilege by the Department pursuant to Section 1547(b) of the Vehicle Code, 75 Pa. C. S. .§ 1547(b). For the reasons set forth below, we reverse the trial courts order and reinstate Mr. Bittners suspension.

On May 19, 1985, Mr. Bittner was arrested for driving under the influence when police observed him driving in an erratic manner and stopped him following a high speed chase. Mr. Bittner was transported to the station house where he was asked to submit to a breathalyzer test. He did submit to one test, but when requested to submit to the second test required by Department regulation at 67 Pa. Code §77.24,1 Mr. *614Bittner failed to supply a. sufficient breath sample. The breathalyzer operator treated, this as a refusal to submit and so notified the Department.

Mr. Bittner was subsequently informed by the Department that his operating privilege was suspended for one year due to ;his refusal to submit to the breathalyzer. The trial court sustained his appeal of this determination,2 and the Department has petitioned for our review of the courts order.

The sole issue before us is whether the Department properly suspended Mr. Bittners license for refusing to submit to a breathalyzer when he did submit to the initial test but refused the second test required by Department regulation. This • issue has been resolved recently by this Court and need not be addressed here at length. See Bush v. Commonwealth, 112 Pa. Commonwealth Ct. 510, 535 A.2d 754 (1988), and Department of Transportation, Bureau of Driver Licensing v. Penich, 112 Pa. Commonwealth Ct. 303, 535 A.2d 296 (1988).

In Bush, we held that a request for a second breath test, pursuant to 67 Pa. Code §77.24(b)(1), is per-sé reasonable under our Supreme Courts decision in Department of Transportation v. McFarren, 514 Pa. 411, 525 *615A.2d 1185 (1987).3 Accordingly, a failure to submit to the two required breath tests constitutes a refusal to submit to chemical testing under Section 1547(b) of the Vehicle Code, 75 Pa. C. S. § 1547(b), and must result in a one-year suspension of operating privileges.

We, therefore, conclude that the trial court erred as a matter of law in sustaining Mr. Bittners appeal, and we will reverse its determination.

Order

The order of the Court of Common Pleas of Allegheny ■ County in the above-captioned- proceeding is reversed, and the . one-year suspension of Christopher • J. Bittners operating privilege is reinstated.