OPINION
The Texas Department of Transportation (“TxDOT”) appeals from the trial court’s denial of its plea to the jurisdiction. Tex. Crv. Peac. & Rem.Code Ann. § 51.104(a)(8) (Vernon 1997). We ordered the proceedings below stayed pending the outcome of the appeal. Tex.R.App. P. 29.3. We will affirm the trial court’s ordеr denying the plea to the jurisdiction. Also, Beckner filed a motion for appellate sanctions, which we will deny. Id. 45.
Background
The following facts and events set the stage for this appeal:
• In January 1994, Beckner injured his back on the job while employed by TxDOT.
• TxDOT is a self-insured employer under the Texas Workers’ Compensаtion Act. Tex. Lab.Code Ann. § 406.003 (Vernon 1996).
• Beckner collected “impairment income benefits” under the Workers’ Compensation Act. Id. § 408.121. Later he applied for and received “supplemental income benefits.” Id. § 408.141. TxDOT disputed whether, for the period of April 1, 2000, through September 29, 2000, Beckner made a good faith search for employment commensurate with his ability to work, as is required by administrative regulations of the Texas Workers Compensation Commission (“TWCC”). 28 Tex. Admin. Code § 130.102.
• A benefit review conference before a review officer of the TWCC was held in August 2000 in an attempt to mediate the dispute, but the matter was nоt resolved. Tex. Lab.Code Ann. §§ 410.021-.034 (Vernon 1996).
• A benefit contested case hearing before a hearing officer of the TWCC was held in October 2000. Id. §§ 410.151-.169 (Vernon 1996 and Supp.2002). On October 25, the hearing officer ruled that Beckner was not entitled to the benefits because he had not made a good faith effort to obtаin employment commensurate with his ability to work. The officer issued a written “Decision and Order” containing findings of fact and conclusions of law.
• Beckner appealed that decision, and on December 20, 2000, an appeals panel of the TWCC affirmed the decision of *101 the hearing officer in a brief written “Decision.” Id. §§ 410.201-208. The “Decision” (1) recounted minimal facts, (2) recited the hearing officer’s finding that Beckner “had ability to work during [the time in question] but failed to make a good faith search for employment commensurate with his ability to work,” (3) stated the applicable standard of review, and (4) concluded that the hearing officer’s decision was nоt “against the great weight and preponderance of the evidence.”
• On January 23, 2001, Beckner filed the underlying lawsuit. Id. § 410.251 (Vernon 1996). TxDOT filed an “Answer” in February.
Plea to the Jurisdiction
In May 2001, TxDOT filed a “Plea to the Jurisdiction.” The plea pointed out that in his original petition, Beckner said he “is aggrieved by the Findings of Fact and the Conclusions of Law and the decision made by the contested case hearing benefit officer, attached hereto and incorporated herein by reference.” The plea then asserted that “[b]y filing suit claiming he was aggrieved by the decision of the contested case hearing officer and not the Appeals Panel, Plaintiff failed to adhere to the following statutes: Sections 410.251, 410.252, 410.253, 410.301, 410.302, and 410.304 of the” Labor Code. (Emphasis in original). These six statutes in various ways refer to filing a lawsuit based on a decision of the appeals panel. The plea continued, claiming that section 410.252, which requires that the plaintiff file the lawsuit within forty days of the filing of the appeals panel’s decision, is a jurisdictional statute. It concluded that, therefore, Beckner’s рetition alleging a complaint about only the hearing officer’s decision was inadequate to invoke the trial court’s jurisdiction within the forty days. 1
Statutory Prerequisites and Subject Matter Jurisdiction
To render a valid judgment, a trial court must have,
inter alia,
subject matter jurisdiction.
E.g., State ex rel. Latty v. Owens,
The threshold issue here is whether section 410.252 is jurisdictional. Some courts have held that filing the lawsuit outside the forty days deprives the trial court of subject matter jurisdiction.
E.g., Johnson v. United Parcel Service,
The issue in
Dubai
was whether section 71.031 of the Civil Practice and Remedies Code, requiring that suit for personal injuries occurring in another country may be brought in the United States only if that country and the United States have “equal treaty rights,” is jurisdictional. Tex. Civ. PRAC. & Rem.Code Ann. § 71.031 (Vernon Supp.2002). The Court first distinguished common lаw actions from statutory actions.
Dubai,
Soon after
Dubai
was decided, we issued
Godley Independent School Dist. v. Woods,
Soon after our decision in Woods, the Austin court issued
Sierra Club v. Natural Res. Conserv. Com’n,
After Dubai, statutory requirements are not “jurisdictional” merely because they impose a mandatory requirement on the plaintiff before judicial relief may be sought. We must make the determination about jurisdiction on a statute-by-statute basis. To accomplish that, we find the language from Sienu Club provides a workable standard. Therefore, if the statutory requirement “defines, enlarges, or restricts the class of causes the [trial] court may decide or the relief that may be awarded,” it is а jurisdictional requirement. Id. Otherwise it is not. Applying this standard to the present case, we first find that the forty-day filing period is a limitations period, 9 not a jurisdictional requirement. If a petition is not filed within the forty days, the defendant may assert an affirmative defense of limitations under Rule 94. Tex.R. Crv. P. 94. Second, we reject TxDOT’s assеrtion that an express phrase in the petition such as “this claim is based on the decision of the appeals panel” is a jurisdictional requirement. For these reasons, we hold that the trial court correctly denied the plea to the jurisdiction.
Pleading Subject Matter Jurisdiction
Although we reject TxDOT’s argument that Beckner failеd to invoke jurisdiction because his petition did not expressly state a claim based on the
appeals panel’s
decision, nevertheless the general rule at common law is that the plaintiff’s petition should plead facts which support jurisdiction.
10
Tex. Ass’n of Business v.
*104
Air Control Bd.,
Unless the petition “affirmatively demonstrate[s]” a lack of jurisdiction, a “liberal construction of the pleаding is appropriate,” and the trial court will assume jurisdiction until it is proven otherwise.
Peek v. Equipment Serv. Co.,
The record shows that Beckner exhausted his administrative remedies and, only after the appeals panel ruled, filed a lawsuit as allowed by statute within the forty-day limit. Beckner’s petition may be unclear about these events, but he has not “pled himself out of court.” Before the case may be dismissed, TxDOT should specially except to the petition, and the trial court must allow Beckner an opportunity to amend his petition and allege sufficient facts to show subject matter jurisdiction. If he cannot or does not amend, the trial court may grant a plea to the jurisdiction.
Motion for Sanctions
Beckner filed a motion for sanctions under appellate Rule 45 claiming that TxDOT’s appeal is frivolous. 12 Tex.R.App. P. 45. Rule 45 is entitled “Dаmages for Frivolous Appeals in Civil Cases,” and states:
If the court of appeals determines that an appeal is frivolous, it may — on motion of any party or on its own initiative, after notice and a reasonable opportunity for response — award each prevailing party just damages. In determining whether to award damages, the court must not consider *105 any matter that does not appear in the record, briefs, or other papers filed in the court of appeals.
Rule 45 replaces the former Rule 84, entitled “Damages for Delay in Civil Cases,” which applied “where the сourt of appeals shall determine that an appellant has taken an appeal for delay and without sufficient cause.” A showing of “bad faith” was required.
E.g., Tate v. E.I. Du Pont de Nemours & Co.,
Damages have been awarded when, looking at the record from the viewpoint of the appellant, there was no reasonable expectation of reversal.
Id.
at 381. Other courts have used the
Brown
standard, but have kept the “bad faith” requirement.
Chapman v. Hootman,
The fundamental principle in these cases is that “[a] party’s decision to appeal should be based on professional judgment made after careful review of the record for preserved error in light of the applicable standards of review.”
Chapman,
Conclusion
The order denying the plea to the jurisdiction is affirmed. Beckner’s motion for sanctions is denied. The cause is remanded to the trial court for further proceedings.
When our mandate issues, our stay shall be automatically lifted.
Notes
.TxDOT did not assert that any other of the six statutes are jurisdictional. Indeed, some have been held not to be.
E.g., Albertson s, Inc. v. Sinclair,
. Whether the petition states what the contested issues are that the appeals panel decided is not jurisdictional.
Old Republic,
. The Reporter incorrectly cites to section "7” instead of section "5.”
. Beckner relied, inter alia, on Dubai at the hearing on the plea to the jurisdiction.
. Justice Enoch did not participate.
.These would include an attack by a defendant after the plaintiff prevailed at trial, allowing the defendant to "lay behind the log.”
. The statute allows a person affected by a decision of the Commission to file a lawsuit in a Travis County district court.
.
Employees’ Retirement System v. McKillip,
. As TxDOT agrees on page 6 of its brief.
. The Rules of Civil Procedure do not require a plaintiff to make specific allegations about subject matter jurisdiction. See Tex.R. Civ. P. 47, 78-82.
. Concerning other mandatory but non-jurisdictional requirements for which the Legislature has not provided a statutory consequence for non-compliance, courts have held that the non-compliancе can be cured through a motion to abate. Tex.R. Civ. P. 85;
e.g., Hines v. Hash,
. Beckner filed a similar motion, which was denied, in the trial court.
