The petition for rehearing is DENIED. This court’s opinion, 327 F.3d 384 (5th Cir.2003), is hereby withdrawn, and the following opinion is substituted:

Ricardo Perez-Macias appeals his conviction and sentence, arguing that under the Supreme Court’s recent decision in Alabama v. Shelton, 535 U.S. 654, 122 S.Ct. 1764, 152 L.Ed.2d 888 (2002), his prior uncounseled misdemeanor conviction for illegal entry under 8 U.S.C. § 1325(a), for which he received a probated sentence, violated his Sixth Amendment right to counsel and therefore cannot form the predicate for the instant felony conviction for illegal entry under § 1325(a). We affirm.

1. FACTUAL AND PROCEDURAL HISTORY

A. The First Offense

On May 7, 2002, Defendant-Appellant Ricardo Perez-Macias ^[1] illegally entered the United States; he was arrested the next day. On May 9, he was charged in federal district court in Laredo with a misdemeanor offense of illegal entry in violation of 8 U.S.C. § 1325(a) (2000). ^[2][*423] Perez-Macias is a Mexican citizen with no legal status in the United States who has entered the United States illegally approximately fifteen times. ^[3] He appeared pro se, entered a plea of guilty, and was sentenced to a three-year term of unsupervised probation and a $10 special assessment. The Immigration and Naturalization Service then allowed Perez-Macias to voluntarily return to Mexico.

B. The Second Offense

Less than two weeks later, on May 20, 2002, Perez-Macias crossed the Rio Grande River and again illegally entered the United States. He was arrested by border patrol agents in Three Rivers, Texas, on May 21, 2002.

On June 13, 2002, Perez-Macias was indicted in federal district court in Corpus Christi on one felony count of illegal entry in violation of 8 U.S.C. § 1325(a)(1) (2000) ^[4] and two counts of transporting illegal aliens in violation of 8 U.S.C. §§ 1324(a) (1) (A) (ii) and 1324(a)(l)(B)(ii) (2000). Because of this second offense, the magistrate judge who sentenced Perez-Macias in the first case began proceedings to revoke Perez-Maeias’s probation. The district court in this case sought and received transfer of the probation revocation proceedings to it in order to consolidate the revocation and the sentencing on the second offense.

As part of a plea agreement, Perez-Macias agreed to plead guilty to the illegal entry count in exchange for the United States’s agreement to recommend the maximum credit for acceptance of responsibility and to dismiss the other two counts. The district court accepted Perez-Macias’s guilty plea and considered the appropriate sentence. The district court sentenced Perez-Macias for the charged felony illegal entry offense, rather than a misdemeanor offense, because he had previously been convicted of illegal entry. The Presentence Report (“PSR”) recommended Perez-Macias be sentenced with an offense level of 6. ^[5] This reflected a base offense level of 8 for a repeat violation of 8 U.S.C. § 1325(a) with two levels subtracted for acceptance of responsibility. See U.S. Sentencing Guidelines Manual § 2L1.2 (2001). The PSR also added three points for criminal history: one for Perez-Maeias’s prior illegal entry conviction and two because he was on probation for that offense when he committed the instant offense. See id. § 4A1.1. These three criminal history points put Perez-Macias in a criminal history category of II.

Perez-Macias objected to the use of his prior uncounseled misdemeanor to enhance his sentence, arguing that under Alabama v. Shelton, 535 U.S. 654, 122 S.Ct. 1764, 152 L.Ed.2d 888 (2002), the misdemeanor conviction was obtained in[*424] violation of his Sixth Amendment right to counsel. Specifically, Perez-Macias objected to the use of his prior conviction to both: (1) enhance his offense from misdemeanor illegal entry (for which the maximum sentence is six months) to felony illegal entry (for which the maximum sentence is two years) under 8 U.S.C. § 1325(a) and (2) add three criminal history points to place him in a criminal history category of II under the Sentencing Guidelines.

The district court agreed with Perez-Macias, finding that Shelton bars the use of his prior uncounseled misdemeanor because Perez-Macias received probation in that case. ^[6] Therefore, the district court relieved Perez-Macias of the probation sentence in the first case and left only the $10 special assessment. ^[7] The district court then determined that, having vacated the sentence of probation from the misdemeanor conviction, that conviction could permissibly be used to enhance the instant offense from a misdemeanor to a felony. Alternatively, the district court held that 8 U.S.C. § 1325(a)’s felony enhancement provision, which states that a prior “commission” of an illegal entry offense may be used to enhance a subsequent offense, does not require a “conviction,” so that even if Perez-Maeias’s previous conviction was invalid under Shelton, his first offense may still be used to enhance his second offense. After holding that the previous conviction could be used to enhance the offense under § 1325(a), the district court decided to use the prior conviction, but not the prior (and now vacated) sentence of probation, to determine Perez-Macias’s criminal history category. The district court thus gave Perez-Macias one criminal history point (rather than three), but then departed upward to a criminal history category of III (under U.S. Sentenoing Guidelines Manual § 4A1.3) because Perez-Macias had previously and repeatedly illegally entered the United States. The district court sentenced Perez-Macias to eight months in prison, one year of supervised release, and a $100 special assessment. The district court then entered an order dismissing the probation revocation proceedings because it had “delet[ed] the term of probation.” ^[8]

Perez-Macias appealed. He now argues that: (1) under Alabama v. Shelton, his prior uncounseled misdemeanor conviction cannot be used to enhance his offense from a misdemeanor to a felony and (2) the district court erred in its alternative holding that 8 U.S.C. § 1325(a) requires only “commission” of an offense and not a “con[*425] viction.” ^[9]

II. STANDARD OF REVIEW

Constitutional questions are reviewed by this court de novo. E.g., United States v. Aguilar-Tamayo, 300 F.3d 562, 564 (5th Cir.2002). Issues of statutory interpretation are also reviewed de novo. E.g., United States v. Hanafy, 302 F.3d 485, 487 (5th Cir.2002).

III. DISCUSSION

A. Whether Perez-Macias’s prior un-counseled misdemeanor conviction can be used to enhance his current illegal entry offense from a misdemeanor to a felony

Perez-Macias argues that his prior uncounseled misdemeanor cannot be used to enhance the offense in this case from a misdemeanor to a felony. Specifically, he reads the Supreme Court’s recent ruling in Alabama v. Shelton, holding that there is a Sixth Amendment right to counsel in misdemeanor cases where a suspended sentence is imposed, to require counsel (or a valid waiver of counsel) hi misdemeanor cases where only probation is imposed. Assuming that his prior conviction was unconstitutional, then, Perez-Macias argues it cannot be used to enhance his current offense from a misdemeanor to a felony even though the district court vacated the sentence of probation.

The United States argues that Perez-Macias’s prior misdemeanor may be used to enhance his current offense because Shelton applies to require counsel only when suspended sentences, and not when stand-alone sentences of probation, are imposed. The United States argues that a defendant sentenced to probation does not havé a' Sixth Amendment right to counsel so long as he never receives a sentence of imprisonment. The United States further argues that even if Shelton applies to require counsel before a defendant may be sentenced to -imprisonment upon revocation of his probation, because the district court in this case vacated the sentence of probation for the first offense, Perez-Macias could never be sentenced to prison for that offense. . Hence, his previous conviction may be used to enhance his sentence for the current offense.

The district court determined that Shelton gave Perez-Macias a Sixth Amendment right to counsel in his first case because he was sentenced to probation. The district court then vacated Perez-Macias’s sentence of probation in the first case and held that the first conviction could permissibly be used to enhance the current offense from a misdemeanor to a felony under 8 U.S.C. § 1325(a).

The Supreme Court has explained that a defendant has a Sixth Amendment right to counsel in a misdemeanor case only under certain circumstances. ^[10] In Argersinger v. Hamlin, the Supreme Court held that “absent a knowing and intelligent waiver, no person may be imprisoned for any offense, whether classified as petty, misdemeanor, or felony, unless he was represented by counsel at his trial.” 407 U.S. 25, 37, 92 S.Ct. 2006, 32 L.Ed.2d 530 (1972) (emphasis added). In Scott v. Illinois, the Court clarified that the right to counsel[*426] only applies where the defendant is actually sentenced to imprisonment and not merely where imprisonment is an authorized penalty. ^[11] See 440 U.S. 367, 370-74, 99 S.Ct. 1158, 59 L.Ed.2d 383 (1979). In Nichols v. United, States, the Court went one step further, explaining that an un-counseled misdemeanor conviction that was valid under Scott because no term of imprisonment was imposed may be used to enhance the penalty for a subsequent offense. See 511 U.S. 738, 748-49, 114 S.Ct. 1921, 128 L.Ed.2d 745 (1994).

In Alabama v. Shelton, the Court considered whether a defendant sentenced to a suspended sentence of imprisonment has a Sixth Amendment right to counsel. See 535 U.S. 654, 122 S.Ct. 1764, 1767, 152 L.Ed.2d 888 (2002). Shelton was convicted of third-degree assault in Alabama state court and was sentenced to a suspended 30-day prison sentence, two years’ unsupervised probation, and monetary penalties. See id. at 1767-68. The Court held that a suspended sentence is a “term of imprisonment” requiring counsel under Argersinger and its progeny. See id. at 1767. The Court explained that “[a] suspended sentence is a prison term imposed for the offense of conviction. Once the prison term is triggered, the defendant is incarcerated not for the probation violation, but for the underlying offense.” Id. at 1770.

Shelton did not address the sentence of probation at issue in this case because a suspended sentence is not the same as a stand-alone sentence of probation. The sentence under consideration in Shelton was a suspended sentence coupled with probation, while in this case, Perez-Macias received probation without a suspended sentence. ^[12] Many, if not all, states impose probation only in connection with a suspended sentence. See Shelton, 122 S.Ct. at 1776 (noting “the Alabama Attorney General’s acknowledgment at oral argument that he did not know of any State that imposes, postconviction ... a term of probation unattached to a suspended sentence”). In contrast, in the federal system, probation is available as a stand-alone sentence and suspended sentences are not used. See U.S. Sentencing Guidelines Manual ch. 7, introductory cmt. (2001) (“The statutory authority to ‘suspend’ the imposition or execution of a sentence in order to impose a term of probation was abolished upon implementation of the sentencing guidelines. Instead, the Sentencing Reform Act recognized probation as a sentence in itself.”); see also 18 U.S.C. § 3561 (authorizing a sentence of probation). None of our sister circuits has yet addressed how Shelton applies to federal stand-alone probation sentences.

A suspended sentence is conceptually different from a sentence of probation. If a defendant receives a suspended sentence, he is sentenced to a term of imprisonment that is suspended. See Shelton, 122 S.Ct. at 1770. Suspended sentences are usually imposed in conjunction with probation so that if a defendant commits another crime or violates a condition of probation, his suspended sentence is activated. See id. If a defendant receives only a sentence of probation, he is sentenced to community release with condi[*427] tions; he does not receive a sentence of imprisonment. ^[13] See, e.g., Wayne R. La-Fave et al., Criminal Procedure 1199-1200 (3d ed.2000); see also Johnson v. United States, 529 U.S. 694, 711 n. 11, 120 S.Ct. 1795, 146 L.Ed.2d 727 (2000) (noting that federal probation is an “alternative” to imprisonment). If a defendant serving a stand-alone probation sentence violates a condition of probation, his probation may be revoked after a hearing and he may be sentenced to any punishment that was originally available at sentencing. See 18 U.S.C. § 3565 (2000); Fed.R.Crim.P. 32.1; see also Gagnon v. Scarpelli, 411 U.S. 778, 782, 787-90, 93 S.Ct. 1756, 36 L.Ed.2d 656 (1973) (holding that a defendant has a due-process right to a hearing before his probation is revoked). At a probation revocation hearing, federal law grants the defendant a right to counsel, a right to written notice of the violation, disclosure of evidence against him, the opportunity to hear and present evidence, and the opportunity to question adverse witnesses. See 18 U.S.C. § 3006A(a)(l)(C) (2000); Fed. R. CRim. P. 32.1. The district court does not retry issues of guilt or innocence; the only issue is whether the defendant violated a condition of probation and what should be done about it. See United States v. Francischine, 512 F.2d 827, 829 (5th Cir.1975). The issue of whether there was a violation need not be determined beyond a reasonable doubt and the Federal Rules of Evidence generally need not be followed. See id.; see also Fed.R.Evid. 1101(d)(3).

The Shelton Court expressly refused to address whether its holding applies to a sentence of probation uncoupled with a suspended sentence. Initially, the Court limited its holding to suspended sentences: “We hold that a suspended sentence that may ‘end up in the actual deprivation of a person’s liberty’ may not be imposed unless the defendant was accorded ‘the guiding hand of counsel’ in the prosecution for the crime charged.” Shelton, 122 S.Ct. at 1767 (quoting Argersinger, 407 U.S. at 40, 92 S.Ct. 2006) (emphasis added). The Court then noted that though Alabama “invite[d] [them] to regard two years’ probation for Shelton as a separate and independent sentence” and hold that “probation uncoupled from a prison sentence should trigger no immediate right to appointed counsel,” the Court would not consider that argument because “[t]here is not so much as a hint ... in the decision of the Supreme Court of Alabama[] that Shelton’s probation term is separable from the prison term to which it was tethered.” Shelton, 122 S.Ct. at 1775-76. The Court thus stated: “Absent any prior presentation of the position the State now takes, we resist passing on it in the first instance.” Id. at 1776 (citation omitted). Shelton, by its very language, does not address the right to counsel in misdemeanor cases where a defendant receives a stand-alone probation sentence.

Further, we do not believe that the logic of Shelton compels extension of the right to counsel to cases where the defendant receives a sentence of probation uncoupled with a suspended sentence. The key to the Supreme Court’s jurisprudence addressing the right to counsel in misdemeanor cases is whether the defendant receives a sentence of imprisonment. See Nichols, 511 U.S. at 749, 114 S.Ct. 1921 (“[A]n uncounseled misdemeanor conviction, valid under Scott because no prison term was imposed, is also valid when used to enhance punishment at a subsequent conviction.”) (emphasis added); Scott, 440[*428] U.S. at 374, 99 S.Ct. 1158 (“[N]o indigent criminal defendant [may] be sentenced to a term of imprisonment unless the State has afforded him the right to assistance of appointed counsel in his defense.”); Argersinger, 407 U.S. at 37, 92 S.Ct. 2006 (“[AJbsent a knowing and intelligent waiver, no person may be imprisoned for any offense ... unless he was represented by counsel at his trial.”) (emphasis added). The Court has made it clear “that actual imprisonment is a penalty different in kind from fines or the mere threat of imprisonment” and that “actual imprisonment [i]s the line defining the constitutional right to appointment of counsel.” Scott, 440 U.S. at 373, 99 S.Ct. 1158. The Shelton Court reaffirmed the “actual imprisonment” standard. See 122 S.Ct. at 1769-70. Applying that standard to this case, we find the answer clear. A defendant who receives a suspended sentence is given a term of imprisonment, while a defendant who receives a stand-alone sentence of probation is not. Perez-Macias was sentenced to probation, not to prison, and thus his previous uncounseled misdemeanor conviction may be used to enhance his current offense. ^[14]

At the same time, we are cognizant of the fact that a misdemeanor defendant sentenced to probation could receive a prison term upon revocation of his probation. The threat of imprisonment if and when the probation is later revoked does not dictate that the defendant be afforded counsel when he is found guilty of the underlying misdemeanor offense and receives probation. The actual imposition of a term of imprisonment upon probation revocation may pose a Sixth Amendment problem. ^[15] That is, it may be the case that a misdemeanor defendant who was convicted without counsel may not be sentenced to prison upon revocation of his probation. We need not address that issue, however. Here, the district court relieved Perez-Macias of the probation sentence for his first offense, leaving only a fine. See Scott, 440 U.S. at 370-74, 99 S.Ct. 1158 (holding there is no Sixth Amendment right to counsel when only a fine is imposed). The district court then dismissed the pending probation revocation proceedings for that offense; neither party appeals that ruling. Thus, Perez-Macias did not and cannot receive a term of imprisonment for his first offense. As a result, there is no Sixth Amendment problem with Perez-Maeias’s first conviction and it may be used to enhance the instant of[*429] fense. See Nichols, 511 U.S. at 748-49, 114 S.Ct. 1921.

B. Whether the district court erred in alternatively holding that only commission of a prior offense, but not a conviction, is required to enhance a misdemeanor illegal entry offense to a felony under 8 U.S.C. § 1825(a)

Because we affirm Perez-Macias’s conviction and sentence on the grounds that Perez-Macias’s prior conviction was validly used to enhance his current offense, we do not consider the district court’s alternative holding that 8 U.S.C. § 1325(a) requires only evidence of commission of an offense, and not a prior conviction, to enhance a misdemeanor illegal entry offense to a felony.

IV. CONCLUSION

For the foregoing reasons, Perez-Macias’s conviction and sentence are AFFIRMED.