Appellant Richard J. Cloughley pleaded guilty in the district court1 to one count in violation of 21 U.S.C. Sec. 846 (conspiracy to distribute cocaine). Cloughley then filed a motion petitioning the court not to sentence him under the guidelines promulgated by the United States Sentencing Commission2 because he had cooperated with the government by providing substantial information regarding the activities of other criminals. The court denied Cloughley's request and sentenced him pursuant to the Sentencing Guidelines. On appeal, Cloughley asserts that the district court erred because (1) the Sentencing Guidelines are unconstitutional and (2) regardless of their constitutionality, his effort to assist the government was sufficient to justify a departure from the guidelines. We affirm.

On April 1, 1988, agents of the Drug Enforcement Administration (DEA) arrested a drug dealer in possession of four ounces of cocaine near the Kansas City International Airport. The captured dealer agreed to cooperate with the DEA. When he indicated that he had received the cocaine from Richard J. Cloughley, DEA agents directed him to schedule another transaction with Cloughley. The dealer did so, and Cloughley was arrested and charged with distribution of cocaine. On April 18, 1988, Cloughley was indicted for conspiring to distribute cocaine. He pleaded guilty to the conspiracy count two months later, pursuant to a written plea bargain agreement. The agreement provided that the distribution count would be dismissed at the time of sentencing. It also contained the following provision:

Defendant has been cooperating and agrees to continue to cooperate with the United States. If "substantial assistance" as defined by Sec. 5K1.13 is provided by defendant, the United States will petition the Court to depart and sentence below the range of incarceration otherwise required by the Guidelines.

The government concluded that Cloughley's efforts to cooperate did not satisfy Sec. 5K1.1, so it did not recommend a departure from the guidelines.

At Cloughley's sentencing hearing, which took place both in open court and in camera, he filed a motion petitioning the court to depart from the guidelines because he had attempted in good faith to provide the substantial assistance required by Sec. 5K1.1. Cloughley also asserted that he had risked his safety and that of his family by supplying the government with the following information:

(1) his supplier's first name, ethnic background, and possible place of residence;

(2) the clientele and location of a "dope house";

(3) the alleged address of a fugitive residing in San Diego, California; and

(4) the identities of two small-time drug peddlers.

A DEA agent stated that although Cloughley did cooperate, no prosecutions of other alleged criminals were pursued as a result of the information he provided. The district court declined to depart from the Sentencing Guidelines and sentenced him to thirty months in prison pursuant to the Sentencing Guidelines. Cloughley then filed this appeal.

Cloughley's first assertion challenging his sentence is an attack on the constitutionality of the Sentencing Guidelines. He argues that by impermissibly "commingling" functions of the Judicial, Legislative and Executive Branches, the guidelines violate the principles of (1) separation of powers and (2) nondelegation of excessive legislative powers.

These contentions have been rendered moot: the question of the constitutionality of the Sentencing Guidelines was recently answered by United States Supreme Court in Mistretta v. United States, 488 U.S. 361, 109 S. Ct. 647, 102 L. Ed. 2d 714 (1989).4

The Mistretta Court held that although the Sentencing Guidelines are "an unusual hybrid in structure and authority," they are constitutional, amounting to neither excessive delegation of legislative power nor a violation of the separation of powers principle. Id. 109 S.Ct. at 675. The Court concluded that despite the apparent commingling of the functions of the three branches inherent in the creation of the Guidelines:

The Constitution's structural protections do not prohibit Congress from delegating to an expert body located within the Judicial Branch the intricate task of formulating sentencing guidelines consistent with such significant statutory direction as is present here. Nor does our system of checked and balanced authority prohibit Congress from calling upon the accumulated wisdom and experience of the Judicial Branch in creating policy on a matter uniquely within the ken of judges. Accordingly, we hold the Act is constitutional.

Id. In light of Mistretta, the district court clearly did not err in applying the guidelines when it sentenced Cloughley.

Second, Cloughley contends that the district court erred in sentencing him pursuant to the Sentencing Guidelines because he made a good faith effort to provide the substantial assistance required by Sec. 5K1.1 of the guidelines. The government counters that Cloughley did not supply substantial assistance.

In United States v. Evidente, 894 F.2d 1000 (8th Cir.1990), this court held that we are not "empowered under 18 U.S.C. Sec. 3742, or any other statute, to review a sentencing court's exercise of its discretion to refrain from departing either upward or downward from the range established by the applicable guideline." Id. at 1004. Therefore, the district court's refusal to depart from the guidelines pursuant to Sec. 5K1.1 is nonreviewable.

For the reasons stated herein, we affirm.