delivered the opinion of the Court.
The Sixth Amendment safeguards to an accused who faces incarceration the right to counsel at all critical stages of the
*81
criminal process.
Maine
v.
Moulton,
Beyond affording the defendant the opportunity to consult with counsel prior to entry of a plea and to be assisted by counsel at the plea hearing, must the court, specifically: (1) advise the defendant that “waiving the assistance of counsel in deciding whether to plead guilty [entails] the risk that a viable defense will be overlooked”; and (2) “admonis[h]” the defendant “that by waiving his right to an attorney he will lose the opportunity to obtain an independent opinion on whether, under the facts and applicable law, it is wise to plead guilty”?
We hold that neither warning is mandated by the Sixth Amendment. The constitutional requirement is satisfied when the trial court informs the accused of the nature of the charges against him, of his right to be counseled regarding his plea, and of the range of allowable punishments attendant upon the entry of a guilty plea.
I
On November 2, 1996, respondent Felipe Edgardo Tovar, then a 21-year-old college student, was arrested in Ames,
*82
Iowa, for operating a motor vehicle while under the influence of alcohol (OWI). See Iowa Code §321J.2 (1995).
1
An intoxilyzer test administered the night of Tovar’s arrest showed he had a blood alcohol level of 0.194. App. 24. The arresting officer informed Tovar of his rights under
Miranda
v.
Arizona,
Some hours after his arrest, Tovar appeared before a judge in the Iowa District Court for Story County. The judge indicated on the initial appearance form that Tovar appeared without counsel and waived application for court-appointed counsel. Initial Appearance in No. OWCR 23989 (Nov. 2, 1996), Lodging of Petitioner. The judge also marked on the form’s checklist that Tovar was “informed of the charge and his . . . rights and receive[d] a copy of the Complaint.” Ibid. Arraignment was set for November 18, 1996. In the interim, Tovar was released from jail.
At the November 18 arraignment, 2 the court’s inquiries of Tovar began: “Mr. Tovar appears without counsel and I see, Mr. Tovar, that you waived application for a court appointed attorney. Did you want to represent yourself at today’s hearing?” App. 8-9. Tovar replied: “Yes, sir.” Id., at 9. The court soon after asked: “[H]ow did you wish to plead?” Tovar answered: “Guilty.” Ibid. Tovar affirmed that he *83 had not been promised anything or threatened in any way to induce him to plead guilty. Id., at 13-14.
Conducting the guilty plea colloquy required by the Iowa Rules of Criminal Procedure, see Iowa Rule Crim. Proc. 8 (1992), 3 the court explained that, if Tovar pleaded not guilty, he would be entitled to a speedy and public trial by jury, App. 15, and would have the right to be represented at that trial by an attorney, who “could help [Tovar] select a jury, question and cross-examine the State’s witnesses, present evidence, if any, in [his] behalf, and make arguments to the judge and jury on [his] behalf,” id., at 16. By pleading guilty, the court cautioned, “not only [would Tovar] give up [his] right to a trial [of any kind on the charge against him], [he would] give up [his] right to be represented by an attorney at that trial.” Ibid. The court further advised Tovar that, if he entered a guilty plea, he would relinquish the right to remain silent at trial, the right to the presumption of innocence, and the right to subpoena witnesses and compel their testimony. Id., at 16-19.
Turning to the particular offense with which Tovar had been charged, the court informed him that an OWI conviction carried a maximum penalty of a year in jail and a $1,000 fine, and a minimum penalty of two days in jail and a $500 fine. Id., at 20. Tovar affirmed that he understood his exposure to those penalties. Ibid. The court next explained that, before accepting a guilty plea, the court had to assure itself that Tovar was in fact guilty of the charged offense. Id., at 21-22. To that end, the court informed Tovar that the OWI charge had only two elements: first, on the date in question, Tovar was operating a motor vehicle in the State of Iowa; second, when he did so, he was intoxicated. Id., at 23. Tovar confirmed that he had been driving in Ames, Iowa, on the night he was apprehended and that he did not dispute the results of the intoxilyzer test administered by *84 the police that night, which showed that his blood alcohol level exceeded the legal limit nearly twice over. Id., at 23-24.
After the plea colloquy, the court asked Tovar if he still wished to plead guilty, and Tovar affirmed that he did. Id., at 27-28. The court then accepted Tovar’s plea, observing that there was “a factual basis” for it, and that Tovar had made the plea “voluntarily, with a full understanding of [his] rights, [and] ... of the consequences of [pleading guilty].” Id., at 28.
On December 30, 1996, Tovar appeared for sentencing on the OWI charge 4 and, simultaneously, for arraignment on a subsequent charge of driving with a suspended license. Id., at 45-46; see Iowa Code §321J.21 (1995). 5 Noting that Tovar was again in attendance without counsel, the court inquired: “Mr. Tovar, did you want to represent yourself at today’s hearing or did you want to take some time to hire an attorney to represent you?” App. 46. 6 Tovar replied that he would represent himself. Ibid. The court then engaged in essentially the same plea colloquy on the suspension charge as it had on the OWI charge the previous month. Id., at 48-51. After accepting Tovar’s guilty plea on the suspension charge, the court sentenced him on both counts: For the OWI conviction, the court imposed the minimum sentence of two days in jail and a $500 fine, plus a surcharge and *85 costs; for the suspension conviction, the court imposed a $250 fine, plus a surcharge and costs. Id., at 55.
On March 16,1998, Tovar was convicted of OWI for a second time. He was represented by counsel in that proceeding, in which he pleaded guilty. Record 60; see App. to Pet. for Cert. 24, n. 1.
On December 14, 2000, Tovar was again charged with OWI, this time as a third offense, see Iowa Code §321J.2 (1999), and additionally with driving while license barred, see §321.561. Iowa law classifies first-offense OWI as a serious misdemeanor and second-offense OWI as an aggravated misdemeanor. §§321J.2(2)(a)-(7>). Third-offense OWI, and any OWI offenses thereafter, rank as class “D” felonies. §321J.2(2)(c). Represented by an attorney, Tovar pleaded not guilty to both December 2000 charges. Record 55.
In March 2001, through counsel, Tovar filed a motion for adjudication of law points; 7 the motion urged that Tovar’s first OWI conviction, in 1996, could not be used to enhance the December 2000 OWI charge from a second-offense aggravated misdemeanor to a third-offense felony. App. 3-5. 8 Significantly, Tovar did not allege that he was unaware at the November 1996 arraignment of his right to counsel prior to pleading guilty and at the plea hearing. Instead, he maintained that his 1996 waiver of counsel was invalid — not “full knowing, intelligent, and voluntary” — because he “was never made aware by the court... of the dangers and disadvantages of self-representation.” Id., at 3-4.
*86 The court denied Tovar’s motion in May 2001, explaining: “Where the offense is readily understood by laypersons and the penalty is not unduly severe, the duty of inquiry which is imposed upon the court is only that which is required to assure an awareness of [the] right to counsel and a willingness to proceed without counsel in the face of such awareness.” App. to Pet. for Cert. 36-37 (brackets in original). Tovar then waived his right to a jury trial and was found guilty by the court of both the OWI third-offense charge and driving while license barred. Id., at 33. Four months after that adjudication, Tovar was sentenced. On the OWI third-offense charge, he received a 180-day jail term, with all but 30 days suspended, three years of probation, and a $2,500 fine plus surcharges and costs. App. 70-71. For driving while license barred, Tovar received a 30-day jail term, to run concurrently with the OWI sentence, and a suspended $500 fine. Id., at 71.
The Iowa Court of Appeals affirmed, App. to Pet. for Cert. 23-30, but the Supreme Court of Iowa, by a 4-to-3 vote, reversed and remanded for entry of judgment without consideration of Tovar’s first OWI conviction,
“[A] defendant such as Tovar who chooses to plead guilty without the assistance of an attorney must be advised of the usefulness of an attorney and the dangers of self-representation in order to make a knowing and intelligent waiver of his right to counsel.... [T]he trial judge [must] advise the defendant generally that there are defenses to criminal charges that may not be known by *87 laypersons and that the danger in waiving the assistance of counsel in deciding whether to plead guilty is the risk that a viable defense will be overlooked. The defendant should be admonished that by waiving his right to an attorney he will lose the opportunity to obtain an independent opinion on whether, under the facts and applicable law, it is wise to plead guilty. In addition, the court must ensure the defendant understands the nature of the charges against him and the range of allowable punishments.” Id., at 121. 9
We granted certiorari,
II
The Sixth Amendment secures to a defendant who faces incarceration the right to counsel at all “critical stages” of the criminal process. See,
e. g., Maine
v.
Moulton,
A person accused of crime, however, may choose to forgo representation. While the Constitution “does not force a
*88
lawyer upon a defendant,”
Adams
v.
United States ex rel. McCann,
We have described a waiver of counsel as intelligent when the defendant “knows what he is doing and his choice is made with eyes open.”
Adams,
As to waiver of trial counsel, we have said that before a defendant may be allowed to proceed
pro se,
he must be
*89
warned specifically of the hazards ahead.
Faretta
v.
California,
Later, in
Patterson
v.
Illinois,
Patterson
concerned postindictment questioning by police and prosecutor. At that stage of the case, we held, the warnings required by
Miranda
v.
Arizona,
Patterson describes a “pragmatic approach to the waiver question,” one that asks “what purposes a lawyer can serve at the particular stage of the proceedings in question, and what assistance he could provide to an accused at that stage,” in order “to determine the scope of the Sixth Amendment right to counsel, and the type of warnings and procedures that should be required before a waiver of that right will be recognized.” Id., at 298. We require less rigorous warnings pretrial, Patterson explained, not because pretrial proceedings are “less important” than trial, but because, at that stage, “the full dangers and disadvantages of self-representation . . . are less substantial and more obvious to an accused than they are at trial.” Id., at 299 (citation and internal quotation marks omitted).
In Tovar’s case, the State maintains that, like the Miranda warnings we found adequate in Patterson, Iowa’s plea colloquy suffices both to advise a defendant of his right to counsel, and to assure that his guilty plea is informed and voluntary. Brief for Petitioner 20; Tr. of Oral Arg. 3. The plea colloquy, according to the State, “makes plain that an attorney’s role would be to challenge the charge or senténce,” and therefore adequately conveys to the defendant both the utility of counsel and the dangers of self-representation. Brief for Petitioner 25. Tovar, on the other hand, defends the precise instructions required by the Iowa Supreme Court, see supra, at 86-87, as essential to a knowing, voluntary, and intelligent plea stage waiver of counsel. Brief for Respondent 15.
To resolve this case, we need not endorse the State’s position that nothing more than the plea colloquy was needed to safeguard Tovar’s right to counsel. Preliminarily, we note that there were some things more in this case. Tovar first
*91
indicated that he waived counsel at his initial appearance, see
supra,
at 82, affirmed that he wanted to represent himself at the plea hearing, see
supra,
at 82, and declined the court’s offer of “time to hire an attorney” at sentencing, when it was still open to him to request withdrawal of his plea, see
supra,
at 84, and n. 4. Further, the State does not contest that a defendant must be alerted to his right to the assistance of counsel in entering a plea. See Brief for Petitioner 19 (acknowledging defendant’s need to know “retained or appointed counsel can assist” at the plea stage by “work[ingj on the issues of guilt and sentencing”). Indeed, the Iowa Supreme Court appeared to assume that Tovar was informed of his entitlement to counsel’s aid or, at least, to have preter-mitted that issue. See
Training on that question, we. turn to, and reiterate, the particular language the Iowa Supreme Court employed in announcing the warnings it thought the Sixth Amendment required: “[T]he trial judge [must] advise the defendant generally that there are defenses to criminal charges that may not be known by laypersons and that the danger in waiving the assistance of counsel in deciding whether to plead guilty is the risk that a viable defense will be overlooked,”
This Court recently explained, in reversing a lower court determination that a guilty plea was not voluntary: “[T]he law ordinarily considers a waiver knowing, intelligent, and sufficiently aware if the defendant fully understands the nature of the right and how it would likely apply
in general
in the circumstances — even though the defendant may not know the
specific detailed
consequences of invoking it.”
United States
v.
Ruiz,
Moreover, as Tovar acknowledges, in a collateral attack on an uncounseled conviction, it is the defendant’s burden to prove that he did not competently and intelligently waive his right to the assistance of counsel. See Watts v.
State,
Given “the particular facts and circumstances surrounding [this] case,” see
Johnson,
*94 We note, finally, that States are free to adopt by statute, rule, or decision any guides to the acceptance of an uncoun-seled plea they deem useful. See, e. g., Alaska Rule Crim. Proc. 39(a) (2003); Fla. Rule Crim. Proc. 3.111(d) (2003); Md. Ct. Rule 4-215 (2002); Minn. Rule Crim. Proc. 5.02 (2003); Pa. Rule Crim. Proc. 121, comment (2003). We hold only that the two admonitions the Iowa Supreme Court ordered are not required by the Federal Constitution.
For the reasons stated, the judgment of the Supreme Court of Iowa is reversed, and the case is remanded for further proceedings not inconsistent with this opinion.
It is so ordered.
Notes
“A person commits the offense of operating while intoxicated if the person operates a motor vehicle in this state in either of the following conditions: a. While under the influence of an alcoholic beverage .... b. While having an alcohol concentration ... of .10 or more.” Iowa Code § 321J.2(1) (1995).
Tovar appeared in court along with four other individuals charged with misdemeanor offenses. App. 6-10. The presiding judge proposed to conduct the plea proceeding for the five cases jointly, and each of the individuals indicated he did not object to that course of action. Id., at 11.
The Rule has since been renumbered 2.8.
At that stage, it was still open to Tovar to request withdrawal of his guilty plea on the OWI charge and to substitute a plea of not guilty. See Iowa Rule Crim. Proc. 8(2)(a) (1992).
In order to appear at the OWI arraignment, Tovar drove to the courthouse despite the suspension of his license; he was apprehended en route home. App. 50, 53.
Prior to asking Tovar whether he wished to hire counsel, the court noted that Tovar had applied for a court-appointed attorney but that his application had been denied because he was financially dependent upon his parents. Id., at 46. Tovar does not here challenge the absence of counsel at sentencing.
See Iowa Rule Crim. Proc. 10(2) (1992) (“Any defense, objection, or request which is capable of determination without the trial of the general issue may be raised before trial by motion.”);
State
v.
Wilt,
Tovar conceded that the 1998 OWI conviction could be used for enhancement purposes. Record 60.
The dissenting justices criticized the majority’s approach as “rigid” and out of line with the pragmatic approach this Court described in
Patterson
v.
Illinois,
The United States as
amicus curiae
reads our decision in
Scott
v.
Illinois,
The Supreme Court of Iowa also held that “the court must ensure the defendant understands the nature of the charges against him and the range of allowable punishments.”
The trial court’s comment that Tovar appeared without counsel at the arraignment and the court’s inquiry whether Tovar wanted to represent himself at that hearing, see App. 8-9, hardly lend support to Tovar’s suggestion of what he “may have” believed. See also id., at 46 (court’s inquiry at sentencing whether Tovar “want[ed] to take some time to hire an attorney”); Iowa Eule Crim. Proc. 8(2)(a) (1992) (“[a]t any time before judgment,” defendant may request withdrawal of guilty plea and substitution of not guilty plea).
