for one offense, absent a clear expression of legislative intent to the contrary.
See Whalen v. United States, 445 U.S. 684, 689, 100 S.Ct. 1432, 1436, 63 L.Ed.2d 715 (1980);
Simpson v. United States, 435 U.S. 6, 12-13, 98 S.Ct. 909, 913, 55 L.Ed.2d 70 (1978);
United States v. Werlinger, 894 F.2d 1015, 1017 (8th Cir.1990). He further argues that the Sentencing Commission has also sought to avoid double counting in certain contexts.
See e.g., U.S.S.G. § 3C1.1, comment, (n. 4) (obstruction of justice enhancement not applicable to offenses such as contempt and bribery of witness);
id. § 3D1.2, comment, (n. 5) (combined offense level for “Groups of Closely Related Counts” prevents double counting).
Although these general propositions have support, Florentino’s position is not persuasive to us. As we noted earlier, the guidelines are to be construed as if they were statutes or court rules and, in the absence of any contrary intent, we must apply their clear and unambiguous terms. We believe the Sentencing Commission has amply expressed its intention to count prior convictions for alien transportation as the district judge did here. Indeed, both the general application principles of the guidelines as well as the specific language at § 2L1.1 directed the judge to count Floren-tino’s prior convictions twice: first, in computing the offense level and, second, in determining the criminal history category. U.S.S.G. § lBl.l(b), (f); § 2L1.1, comment, (n. 4). See also United States v. Goldbaum 879 F.2d 811 (10th Cir.1989) (criminal history category determined independent of the offense conduct level); United States v. Rivera, 879 F.2d 1247, 1253 (5th Cir.1989) (offense level increased by two points under § 2L1.1(b)(2) for prior conviction of smuggling aliens).
C.
Florentino also argues that § 2Ll.l(b)(2)’s sentence enhancement provision is arbitrary and unfair because it applies only to prior convictions for alien transportation. Brief for Appellant at 2. We disagree.
In United States v. Thomas, 884 F.2d 540, 543 (10th Cir.1989), we noted Congress’ power to control judicial sentencing discretion; this includes “the power to specify the factors that a court may consider in setting a sentence.” United States v. Sorensen, 915 F.2d 599, 602 (10th Cir.1990) (quoting United States v. La Guardia, 902 F.2d 1010, 1015 (1st Cir.1990)). Congress delegated this “factor-specifying” power to the Sentencing Commission which reviewed over 40,000 eases and carefully scrutinized 10,000 of them before formulating sentencing standards in the Guidelines. Id.; U.S. S.G. Ch. 1, Pt. A, intro, comment., at 1.10. See Mistretta v. United States, 488 U.S. 361, 109 S.Ct. 647, 102 L.Ed.2d 714 (1989).
As a result of this comprehensive review, the Sentencing Commission determined that alien transportation offenses are especially serious. U.S.S.G. § 2L1.1, comment (backg’d). The Sentencing Commission is free to decide the extent to which prior convictions for such offenses constitute a specific aggravating factor that warrants an increase to § 2Ll.l’s base offense level.
Whether this specific aggravating factor or the degree of enhancement it triggers is wise is not for us to decide. See United States v. La Guardia, 902 F.2d 1010, 1015 (1st Cir.1990). In any event, we hold that § 2Ll.l’s cumulative sentence enhancement provision — the use of prior convictions for a mandatory two point increase in offense level in § 2L1.1(b)(2) and the counting of those convictions again in computing Florentino’s criminal history category — is not arbitrary and, therefore, is constitutional. In fact, § 2L1.1(b)(2) reduces the likelihood of arbitrariness by imposing a uniform methodology for calculating sentences for the transportation of aliens.
D.
Florentino further argues that the trial court was not bound to follow the double counting provision of § 2L1.1 and should have adjusted his criminal history category downward or declined to make the upward adjustment in offense level based upon the same prior offenses. He claims