In the early morning of October 6, 1985, Walter Kilcher drove his car out of a bar parking lot, across three lanes of highway, over a concrete median and directly into a motorcycle, causing injuries to its rider, Richard Simpson. Kilcher was subsequently arrested, charged and convicted of driving while intoxicated. Simpson sued John Q. Hammons-Hotels, Inc., and Holiday Inns, Inc., owners of the Water Wheel Lounge, and Jams, Inc., owner of a drinking establishment known as The King of Clubs, alleging their servants negligently served alcohol to Kilcher after he had become obviously intoxicated. The trial court dismissed Simpson’s suit because the liquor licensees had not been convicted of selling alcohol to a person obviously intoxicated or to a minor, the necessary element of such suits under section 537.053, RSMo 1986.1 *389Simpson concedes that he must prove the statute unconstitutional in order to pursue his case.
Simpson contends section 537.053 is void as being contrary to the due process and equal protection clauses of the Missouri Constitution and the United States Constitution; the open court provision in article I, section 14, of the Missouri Constitution; and the separation of powers provision in article II, section 1, of the Missouri Constitution. Affirmed.
Simpson argues that section 537.053 creates an impermissible obstruction to the courts in violation of Missouri Constitution, article I, section 14, and the first amendment to the United States Constitution. This argument is not persuasive because the constitutional provision was not designed to create rights, but only to allow a person claiming those rights access to the courts when such a person has a legitimate claim recognized by the law. State ex rel. National Refining Co. v. Seehorn, 344 Mo. 547, 127 S.W.2d 418 (1939); Horner v. David Distributing Co., 599 S.W.2d 100 (Mo.App.1980). A similar contention was considered and rejected in Schulte v. Missionaries of La Sallette Corp. of Mo., 352 S.W.2d 636 (Mo.1961), overruled on other grounds, Abernathy v. Sisters of St. Mary’s, 446 S.W.2d 599 (Mo.1969), where the Court held the rule of charitable immunity was not “in any way” a violation of the open court provision in article I, section 14.
The cases cited by Simpson, Strahler v. St. Luke’s Hospital, 706 S.W.2d 7 (Mo. banc 1986), and State ex rel. Cardinal Glennon Mem. Hosp. v. Gaertner, 583 S.W.2d 107 (Mo. banc 1979), involved situations where the plaintiffs’ claims were legitimate and recognized by the law, but were barred by a technical, statutory precondition or requirement. Strahler had a legitimate medical malpractice claim which she brought beyond the two-year statute of limitations, but within two years of obtaining her majority. The statutes in Cardinal Glennon Mem. Hosp., required that malpractice claims be pursued at the Professional Liability Review Board before the lawsuit could be brought. All the cases cited by Simpson involved legitimate claims, recognized by law, which were being hindered by some technical provision.
In this case Simpson’s claim was not a legitimate one recognized by law because it was specifically prohibited by the legislature. Section 537.053, RSMo 1986, declares it is “the policy of this state ... to prohibit dram shop liability_” Neither the constitution nor the cases cited by Simpson can be interpreted as giving a claimant a right to bring into court any grievance he wants. Such an interpretation would require this Court to invalidate numerous statutes and overrule numerous decisions in the area of tort law, including those concerning sovereign immunity, wrongful death, workers’ compensation, and claims under the Federal Tort Claims Act.
Simpson’s argument does not recognize that under the statute the criminal conviction required by subsection 3 of 537.053 is not a precondition to access to the courts— it is a condition to the existence of a cause of action. Childress v. Sams, 736 S.W.2d 48, (Mo. banc 1987). Thus, in cases where the plaintiff is a victim of drunk driving, the conviction of the liquor licensee is an element of plaintiff’s right to sue, not an obstruction or bar to his right to sue.
*390Simpson argues that section 537.053 is invalid because it violates the separation of powers doctrine, Missouri Constitution, article II, section 1, in that the statute: (a) contains an impermissible effort by the legislature to declare and interpret the law by stating how the statute will be interpreted; (b) is an impermissible effort by the legislature to dictate to the judiciary the weight to be given evidence by declaring that proximate cause cannot be found unless the liquor licensee is first convicted; (c) unlawfully delegates to the executive branch discretionary authority to admit or exclude plaintiff in presenting his claim to the courts by permitting the prosecuting attorney’s charging decision to control whether a right to sue can arise; (d) improperly places burdens upon and causes undue delay in the administration of justice by forestalling suit until the liquor licensee is convicted; and (e) attempts retroactive abrogation of existing judicial decisions.
Simpson’s claim that the legislature impermissibly interprets the law and dictates the effect to be given evidence must be rejected. To support his claim, Simpson cites State v. Burling, 224 Neb. 725, 400 N.W.2d 872 (1987), which involved a statutory provision dictating that intoxilyzer results, when the test is performed by someone with a department of health permit, are competent evidence in an alcohol-related traffic offense. The court held:
[T]he Legislature may not declare the weight to be given evidence or what evidence shall be conclusive proof of an issue of fact; ... that is to say, determining whether evidence is of probative value is a legal question, and the legislature cannot impair judicial analysis and resolution of such questions.
Id., 400 N.W.2d at 876. In this case section 537.053.2 does not “impair judicial analysis” because no analysis is necessary. Under the facts of this case the statute simply bars Simpson’s cause of action. The reference to proximate cause was designed to restate the reasoning used by common law courts in rejecting dram shop liability. By explicitly rejecting the reasoning of Carver, Sampson and Nesbitt, the legislature made it clear that dram shop liability would no longer exist in Missouri. The reference to the cases may not have been the best means available for the legislature to express its intent, but in this case there can be no doubt the intent was to prohibit dram shop liability. A similar attack on a dram shop act which specifically abrogated established case law was rejected and the statute upheld in Cory v. Shierloh, 29 Cal.3d 430, 174 Cal.Rptr. 500, 629 P.2d 8, (1981), superseded by statute as stated in Baker v. Sudo, 194 Cal.App.3d, 936, 240 Cal.Rptr. 38 (1987). The reasoning of Cory is persuasive.
This Court is required to construe legislative enactments so as to render them constitutional and avoid the effect of unconstitutionality, if it is reasonably possible to do so. State Tax Commission v. Administrative Hearing Commission, 641 S.W.2d 69 (Mo. banc 1982). Thus this Court interprets 537.053 as a legislative prohibition of dram shop liability coupled with the creation of a new, limited cause of action rather than an impairment of judicial analysis or an unconstitutional precondition on a valid cause of action. This Court has held:
“The constitution does not forbid the creation of new rights, or the abolition of old ones recognized by the common law, to attain a permissible legislative object.” Silver v. Silver, 280 U.S. 117, 50 S.Ct. 57, 58, 74 L.Ed. 221, 65 A.L.R. 939 [1929],... “It can be assumed without misgiving that there is no vested right in any remedy for a tort yet to happen which the Constitution protects. Except as to vested rights, the legislative power exists to change or abolish existing statutory and common-law remedies.”
Holder v. Elms Hotel Co., 338 Mo. 857, 866, 92 S.W.2d 620, 624 (1936). Because this case does not involve vested rights, the interpretation upholding this statute is both authorized and required by the cases cited.
Simpson also argues that section 537.-053.3 impermissibly delegates to the executive branch discretionary authority to permit or exclude plaintiff’s claims by permit*391ting the prosecuting attorney’s charging decision to control whether a right to sue can arise. The Missouri cases cited by Simpson, State ex rel. Missouri Pac. R.R. Co. v. Public Service Commission, 303 Mo. 212, 259 S.W. 445 (1924), and State Tax Commission, 641 S.W.2d 69, do not support his argument of impermissible delegation. The issue in Missouri Pacific was whether the Public Service Commission could determine whether one person is entitled to recover money from another by way of damages. The State Tax Commission case held the Administrative Hearing Commission lacked the power to make declaratory judgments because such a ruling would be void as being a violation of the doctrine of separation of powers and an invasion of judicial authority. The other cases cited by Simpson are equally inappo-site.
Because this Court is required to construe this statute in a manner that renders it constitutionally valid if reasonably possible to do so, State Tax Commission, 641 S.W.2d at 73, this Court determines the statute creates a limited cause of action rather than delegating to the executive branch the authority for determining when suit can be brought. The plain, obvious and rational meaning of the statute is always to be preferred to any “curious, narrow, or strained construction.” Auld v. Terminal R.R. Ass’n of St. Louis, 463 S.W.2d 297, 298-299 (Mo.1970), cert. denied, 401 U.S. 940, 91 S.Ct. 938, 28 L.Ed.2d 220 (1971). The plain meaning of section 537.053 is that dram shop liability is prohibited and a limited cause of action is created. It would be a strained construction for this Court to find that 537.053 has the effect of delegating discretionary authority to the executive branch concerning a plaintiff’s right to bring an otherwise valid cause of action. Here the cause of action is not valid because it was specifically prohibited by the statute.2
Simpson claims that the statute causes undue delay in the administration of justiee because a civil suit is delayed until the criminal conviction of the liquor licensee is obtained. This claim is rejected because the legislature is entitled to provide reasonable restriction or expansion of causes of action which it creates. Chapman v. State Social Secur. Commission, 235 Mo.App. 698, 700, 147 S.W.2d 157, 158-59 (1941); Nistendirk v. McGee, 225 F.Supp. 881, 882 (W.D.Mo.1963) (abolishing common law action and replacing it with statutory action under 28 U.S.C., section 1346, which does not allow for a jury trial). Restrictions on causes of action created by statute in the area of tort law have been consistently upheld. See e.g. Glick v. Ballentine Produce, Inc., 396 S.W.2d 609, 615 (Mo.1965), appeal dismissed, 385 U.S. 5, 17 L.Ed.2d 5, 87 S.Ct. 44 (1966), (upholding the limitation on damages in wrongful death cases, reasoning that the legislature created “the right of action where none existed before, and it may condition the right as it sees fit”); In Re Air Crash Disaster Near Chicago, 644 F.2d 594 (7th Cir.1981), cert. denied, Lin v. American Airlines, Inc., 454 U.S. 878, 102 S.Ct. 358, 70 L.Ed.2d 187 (1981), (upholding restriction on punitive damages in wrongful death actions in which Missouri law is applicable).
Simpson argues that section 537.053 violates the doctrine of separation of powers because it attempts retroactive abrogation of existing judicial decisions mentioned in the statute, citing Cerro Metal Products v. Marshall, 467 F.Supp. 869 (E.D.Pa.1979), aff'd, 620 F.2d 964 (3d Cir.1980). In Cerro the Secretary of Labor (the executive branch) attempted to overrule existing judicial precedent and insist on retroactive application. Cerro is inapposite because this case does not involve retroactive application. This Court held in Lambing, 739 S.W.2d at 718, that the application of section 537.053 is prospective in nature. That the legislature may prospectively abrogate existing case law in the area of tort law is well established. See, e.g. De May v. Liberty Foundry Co., 327 Mo. 495, 37 S.W.2d *392640 (Mo.1931). In De May this Court rejected a challenge to the Missouri Workers’ Compensation system which was based on allegations that the doctrine of separation of powers had been violated. Under this authority, Simpson’s assertions that section 537.053 violates separation of powers is rejected.
Simpson next argues he was denied equal protection of the laws guaranteed by Missouri and United States Constitutions in that the statute, without rational basis, classifies plaintiffs into groups that can sue if a conviction of the liquor licensee is obtained and those who cannot sue because no conviction has been obtained. He argues that this statute should be subject to strict scrutiny because the right of access to the courts is similar to the right to petition, which is a fundamental constitutional right under DeJonge v. State of Oregon, 299 U.S. 353, 57 S.Ct. 255, 81 L.Ed. 278 (1937). This argument fails because claimants do not have a right to bring into court any grievance they want. The right to petition is for those with a valid cause of action. Tort law is replete with cases where certain grievances have not been recognized, such as emotional distress, wrongful birth, wrongful life, and wrongful death cases brought by distant relatives of the deceased, to name but a few.
Again, Simpson’s argument fails to realize that no cause of action exists under the statute in the absence of a conviction. Potential tort claimants are not treated differently because only those cases involving a conviction of the liquor licensee result in a claimant having a potential tort claim.
Assuming arguendo that Simpson’s characterization of these unequal “classes” is correct, his equal protection challenge would nevertheless fail. Disparate treatment of similar classes is permissible where no fundamental right or suspect class is involved, and such classification is rationally related to a legitimate state interest. That the rational basis test is applicable when a statute classifies persons seeking to assert a tort claim into separate classes is well established. See, e.g., Crane v. Riehn, 568 S.W.2d 525 (Mo. banc 1978) (upholding Missouri’s wrongful death statute).
Section 537.053 is supported by rational justification in that the legislature made a policy decision to place responsibility for these accidents on the drunk driver. It also confines the liability of liquor licensees to those cases where conduct is so flagrant it becomes objectively provable by criminal conviction. Thus, judicial efficiency is promoted by preventing lawsuits against tavern owners every time a patron injures himself, or another.
Simpson also asserts this classification resulted in denying him due process of law guaranteed by the Missouri Constitution, article I, section 10. This argument also fails to recognize that two classes were not created. This Court in Childress, 736 S.W.2d at 50, recognized that subsection 3 of 537.053 created “a new, but very limited, dram shop liability.” Id. at 50. By implication, this holding recognizes that the statute does not treat similar classes differently, but creates a new cause of action, conditioned on the conviction of the liquor licensee. Assuming the statute could be construed as creating two unequal classifications, it would nevertheless be valid because it would survive scrutiny under the rational basis test.
To support his due process argument, Simpson cites American Motorcyclists Ass’n v. City of St. Louis, 622 S.W.2d 267 (Mo.App.1981), which involved due process and equal protection challenges to an ordinance prohibiting the operation of a motorcycle in city parks, but permitted the operation of other vehicles. The court, in discussing the rational relation test, explained: “The substantive due process aspect of this test mandates that the ordinance have a rational relationship to a legitimate state interest. United States v. Carolene Products Co., 304 U.S. 144, 152, 58 S.Ct. 778, 783, 82 L.Ed. 1234 (1938). Similarly the equal protection clause requires that classifications drawn by the ordinance have a rational relationship to a legitimate state interest. New Orleans v. Dukes, 427 U.S. 297, 303, 96 S.Ct. 2513, *3932516, 49 L.Ed.2d 511 (1976).” American Motorcyclists Ass’n, 622 S.W.2d at 269. Because it has already been determined that this statute is supported by rational bases, appellant’s substantive due process argument is rejected.
Simpson argues further that the statute is irrational in that it first pronounces that the consumption of alcohol, rather than its furnishing, shall be the proximate cause of the injuries inflicted and then, in subsection 3, proceeds to let such cases be filed if the liquor licensee is convicted of selling alcohol to a minor or obviously intoxicated person. This provision survives scrutiny under the rational basis test because the legislature could reasonably have believed minors and obviously intoxicated persons were not as capable of controlling their behavior and thus not completely responsible for their actions. The Court in Cory, 629 P.2d at 14, held this reasoning was sufficient to pass scrutiny under the rational basis test saying: “The legislature might reasonably have deemed such persons more in need of safeguarding from intoxication than adults because of the comparative inexperience of minors in both drinking and driving.” Id. Similarly, the legislature could have found that persons obviously intoxicated are more in need of statutory protection.
Respondents assert that it is not necessary for this Court to rule on the constitutional questions because they are not essential to the disposition of the case, citing Stenger v. Great Southern Sav. & Loan Ass’n, 677 S.W.2d 376 (Mo.App.1984). Respondents’ argument could affect only those questions regarding due process and equal protection because these constitutional attacks center on subsection 3, which grants the limited cause of action. Respondents’ argument is that this type of suit is prohibited whether the statute is constitutional or unconstitutional because subsection 3 is severable. If the statute is valid, it prohibits Simpson’s cause of action; if subsection 3 is invalid, the first two subsections nevertheless prohibit this cause of action.
Respondents argue that subsection 3 is severable because it is not essentially and inseparably connected with the other provisions. Section 1.140, RSMo 1986, provides: “The provisions of every statute are severable ... unless the court finds the valid provisions of the statute are so essentially and inseparably connected with, and so dependant upon the void provisions that it cannot be presumed the legislature would have enacted the valid provisions without the void one....” The test of the right to uphold a law, some portions of which may be invalid, is whether or not in so doing, after separating that which is invalid, a law in all respects complete and susceptible of constitutional enforcement is left, which the legislature would have enacted if it had known that the exscinded portions were invalid. State ex rel. Audrain County v. Hackman, 275 Mo. 534, 543, 205 S.W. 12, 14 (Mo. banc 1918).
In this case subsections 1 and 2 are complete, constitutional, legislative enactments prohibiting dram shop liability. A reading of 537.053 reveals the legislature clearly intended first and foremost to abrogate the rule of dram shop liability. That this was the intent of 537.053 was recognized in Lambing, 739 S.W.2d at 719 (“Section 537.-053 expresses a legislative intent to shield purveyors of intoxicants from liability for the injuries caused by their drunken patrons.”), and in Andres v. Alpha Kappa Lambda Fraternity, 730 S.W.2d 547 (Mo. banc 1987). This conclusion regarding the severability of subsection 3 does not affect Simpson’s argument relating to the open Court provision and separation of powers because those arguments focus on the entire statute. Simpson’s due process and equal protection arguments which have been rejected on other grounds could also be rejected because subsection 3 is severa-ble.
Simpson duplicates his previous arguments in his final point and alleges that the statute has deprived him of procedural due process guaranteed by Missouri and United States Constitutions. Specifically, Simpson argues that his claim for dram shop liability is a property right sufficient *394to invoke the due process clause of the fourteenth amendment and cites several cases including Martinez v. California, 444 U.S. 277, 281-282, 100 S.Ct. 553, 557, 62 L.Ed.2d 481 (1980), reh’g denied, 445 U.S. 920, 100 S.Ct. 1285, 63 L.Ed.2d 606 (1980).
Whether a rule of tort law can become a property right was decided in the negative by Holder, 92 S.W.2d 620. In that case, the appellant alleged that the workers’ compensation statute took away his common law right of action and was, therefore, unconstitutional because it deprived him of his “constitutional right to a hearing before a constitutional court and deprived him of his property without due process of law.” Id. at 621. In rejecting appellant’s claim, the court relied on its decision in De May, 37 S.W.2d 640, wherein it states, quoting Adams v. Iten Biscuit Co., 630 Okla. 52, 57, 162 P. 938, 942 (1917): “It may be safely stated as a general rule that the citizen has no property in a rule of law, and that, while rights which have accrued to him under operation of existing laws and have thereby become vested may not be taken away by a change of rules, he cannot be heard to complain if the rule is changed before any rights have accrued to him thereunder.” De May, 37 S.W.2d at 647. In this case, Simpson’s injury occurred after the enactment of 537.053; therefore he has no vested right of action and can state no property right in a discarded rule of law.
Simpson also alleges he was denied due process because section 537.053 creates an irrebuttable presumption that there is no proximate causation in dram shop cases unless the tavern keeper is convicted under the criminal code. This allegation is incorrect because the legislature was simply restating the traditional common law rule that the consumption of alcohol, rather than its furnishing, is the proximate cause of any resulting injury. The statute creates no presumption at all. Once a plaintiff establishes that he has a claim recognized by law, the court must determine if proximate cause exists without the use of a presumption.
Simpson also restates his argument that the statute conditions plaintiff’s right of access to the courts upon the decision of the prosecuting attorney whether to prosecute the liquor licensee without granting plaintiff a right to notice and hearing before the official, thereby depriving plaintiff of procedural due process. A reading of section 537.053, however, reveals no language which could be construed as granting discretion to the executive branch. Subsection 3 of section 537.053 provides that if there has been a conviction of the liquor licensee under section 311.310 for selling alcohol to someone obviously intoxicated or to a minor, the licensee becomes subject to a civil suit for dram shop liability. It is likewise difficult to determine what could constitute a grant of discretion in 311.310. That section defines the crime, and section 56.060, RSMo 1986, requires the prosecutor to “commence and prosecute all civil and criminal actions in his county in which the county or state is concerned.” The prosecutor must necessarily exercise discretion in deciding whether sufficient evidence exists to institute a prosecution. The exercise of this discretion, however, cannot result in a denial of due process to Simpson in this collateral proceeding. This argument could also be rejected because, as discussed supra, in order to construe this statute so as to render it constitutionally valid, as required by State Tax Commission, 641 S.W.2d 69, this Court determines section 537.053.3 creates a new, limited cause of action rather than a delegation of discretion.
Because all of Simpson’s attacks on section 537.053 have been rejected, the judgment of dismissal of Simpson’s suit is affirmed.
BLACKMAR, DONNELLY, WELLIVER and ROBERTSON, JJ., concur.
BILLINGS, C.J., dissents in separate opinion filed.
RENDLEN, J., dissents and concurs in separate dissenting opinion of BILLINGS, C.J.