delivered the Opinion of the Court.
In this case, Alan Douglas Sasse maintains that the five-year statute of hmitations contained in § 40-6-108(l)(b), MCA, bars the court from declaring that he is the natural father of Juliet Margarite Rose, a minor child. The District Court, Seventh Judicial District, Dawson County, rejected Sasse’s statute of limitations claim and entered judgment declaring him to be the natural father of Juliet Margarite Rose. From that judgment, Sasse appeals. We affirm the District Court.
The minor child, Juliet Margarite Rose, was born in New Jersey on June 21, 1975. At the time of the child’s conception and birth, Kathleen was married to Stelios Kazantzoglou. The mother, Kathleen, had married Stelios in 1971, but was living apart from Stelios and working in Tennessee. At that time, Sasse, age 17, was in the Armed Services and stationed in Tennessee. He frequented the cafe where Kathleen worked and sometime in August or September of 1974, Kathleen invited Alan to her home which resulted in one instance of sexual intercourse. Shortly thereafter, Sasse was transferred to another station.
Kathleen and Stelios divorced in September, 1976, in West Virginia. The court there found that the parties had not lived together as man and wife for over two years and that no children were bom to the marriage. Kathleen resumed her maiden name of Rose. On June 24, 1980, an action was brought in the State of Arizona by that state on behalf of Kathleen (who had now married Cesar Sanciprian) against Sasse for determination of paternity and for child support for Juliet. Sasse made a special appearance in that action and it was dismissed for lack of personal jurisdiction over him.
The instant action was begun by Kathleen with the State of Arizona as a co-plaintiff and was transferred to Montana for prosecution, on September 25, 1987, under the Uniform Reciprocal Enforcement of Support Act, when the child was 12 years old. Sasse filed his answer to the complaint, noting that he had no knowledge of Kathleen’s marital status at the time of their contact since she was living alone in her apartment, but admitting that he had one occasion *342of sexual intercourse with her in 1974. In his answer, he did not plead the affirmative defense of the statute of limitations.
The District Court appointed a guardian ad litem for the minor child who was joined as a petitioner-by stipulation of the parties.
Pursuant to § 40-6-110, MCA, the District Court caused notice to be given to Stelios Kazantzoglou of the proceedings. He has not intervened or otherwise appeared in the proceedings. The District Court, perceiving that the constitutional validity of the five year statute of limitations contained in § 40-6-108, MCA, was involved in the action, gave notice to the Attorney General of Montana, who decided not to appear.
The District Corut refused to apply the statute of limitations on two principal grounds (1) that Sasse had waived the statute of limitations by not including it in his answer to the complaint, and (2) that in any event, the statute in this case was unconstitutional. We will confine our discussion in this case only to the constitutional issue since we find it dispositive.
By law, Stelios is presumed to be the father of Juliet because he and the mother, Kathleen, were married to each other and the child was born during the marriage. Section 40-6-105(l)(a), MCA. The presumption, however, may be rebutted in an appropriate action by a preponderance of the evidence. Section 40-6-105(2), MCA.
In a case where the existence of the father and child relationship is presumed, an action may be brought for the purpose of declaring the nonexistence of the presumed father and child relationship not later than five years after the child’s birth. Section 40-6-108(l)(b), MCA.
On the other hand, an action to determine the existence or nonexistence of the father and child relationship as to a child who has no statutorily presumed father (for example, born out of wedlock) may be brought by the child up to two years after the child attains the age of majority, or may be brought by a state agency under Title IV-D of the Social Security Act before the child attains the age of majority. Section 40-6-108(3), MCA.
On the basis that § 40-6-108 creates a classification which distinguishes for disparate treatment children with presumed fathers and children without presumed fathers, the District Court held the statute in violation of the equal protection guarantees of Art. II, § 4 of the Montana Constitution and the Fourteenth Amendment of the United States Constitution.
*343Our cases on this point do not appear to be consistent. In Borchers v. McCarter (1979), 181 Mont. 169, 592 P.2d 941, we had a case where the mother of a child with a presumed father (born in wedlock) brought an action for support of the child against another man as the alleged natural father. Thus, the mother, in order to obtain support, had to establish a parent-child relationship between the child and a nonpresumed person. To do this she had first to rebut the statutory presumption of paternity in the presumed father. Because she had not rebutted the presumption within five years of the child’s birth, this Court held that her claim was barred by the five-year statute of limitations.
In State Department of Revenue v. Wilson (Mont. 1981), [_ Mont. _,] 634 P.2d 172, the natural mother of a child bom out of wedlock (no presumed father) brought an action to determine the paternity of the alleged natural father. At that time, there was a three-year statute of limitations applicable to this class of action. This Court noted the disparate treatment of children bom in wedlock and those bom out of wedlock, in that children born in wedlock could bring an action for support against the presumed father at any time within the majority, whereas, under the three-year statute, the child born out of wedlock lost its right of determination of paternity and child support after three years from birth. We there held that the three-year statute was invalid under the Fourteenth Amendment of the United States Constitution because it was “not substantially related to a permissible state interest.” Wilson, 634 P.2d at 174.
In Matter of W.C. (1983), 206 Mont. 432, 671 P.2d 621, the child was bom in wedlock and thus had a presumed father. The mother and the presumed father were divorced nearly three years after the birth and the final decree stated that the child was bom of the parties’ marriage. Later, the mother married the alleged natural father, who filed an action to determine the parentage of the child. The District Court dismissed the petition on the basis that the alleged natural father was barred by the five-year statute of limitations from challenging the presumed father and child relationship. In upholding the application of the five-year statute of limitations, this Court distinguished the decisions of the United States District Court in Mills v. Habluetzel (1982), 456 U.S. 91, 102 S.Ct. 1549, 71 L.Ed. 2d 770 and Pickett v. Brown (1983), 462 U.S. 1, 103 S.Ct. 2199, 76 L.Ed.2d 372, which cases had struck down one-year and two-year statutes of limitations respectively. The distinguishing factor utilized by this *344Court was that in the case of W.C., there was no question involved of the child’s right to support. Since the action was brought by the natural father who was then supporting the child, this Court held that there was no discrimination as between children born in wedlock and those bom out of wedlock as to their right to claim support.
In the case at bar, the District Court relied on the holding in Wilson, and decided that the five-year statute of limitations in § 46-6-108, MCA, was unconstitutional because it denied the equal protection of the laws “by affording a twenty (20) year limitation period for paternity actions involving illegitimate children and a five (5) year limitation period for paternity actions involving legitimate children.”
In Wilson, this Court utilized the rational basis test in determining the equal protection issue. We here examine the level of test to be used and the application of the statutes of limitations in paternity cases in the light of Clark v. Jeter, 486 U.S. 456, 108 S.Ct. 1910, 100 L.Ed. 2d 465 (1988). There the United States Supreme Court had before it a case involving Pennsylvania law where a child born out of wedlock was required to prove paternity to receive support from the natural father, and the suit to establish paternity was required to be brought within six years of the child’s birth. By contrast, under Pennsylvania law, a child born in wedlock could seek support from his or her parents at any time.
In Clark, the United States Supreme Court determined to apply a level of intermediate scrutiny in determining the equal protection issues. The Court said:
“In considering whether state legislation violates the Equal Protection Clause of the Fourteenth Amendment, U.S. Const., Amendment 14, § 1, we apply different levels of scrutiny to different types of classifications. At a minimum, a statutory classification must be rationally related to a legitimate governmental purpose. (Citing-cases.) Classifications based on race or national origin, e.g., Loving v. Virginia, 388 U.S. 1, 11 [87 S.Ct. 1817, 1823, 18 L.Ed.2d 1010] (1967) and classifications affecting fundamental rights, e.g., Harer v. Virginia Board of Elections, 383 U.S. 663, 672, [86 S.Ct. 1079, 1084-85, 16 L.Ed.2d 169] (1966), are given the most exacting scrutiny. Between these extremes of rational basis review and strict scrutiny lies a level of intermediate scrutiny, which generally has been applied to discriminatory classifications based on sex or illegitimacy (citing cases).
“To withstand intermediate scrutiny, a statutory classification must be substantially related to a governmental objective. *345Consequently, we have invalidated classifications that burden illegitimate children for the sake of punishing the illicit relations of their parents, because ‘visiting this condemnation on the head of an infant is illogical and unjust.’ ” (Citing a case.)
Clark, 486 U.S. at 461, 108 S.Ct. at 1914.
In Clark, the Supreme Court then went on to examine the equal protection issue. It reviewed Mills and Pickett, referred to by this Court in W. C. It then went on to conclude that Pennsylvania’s six-year statute of limitations violated the federal Equal Protection Clause.
Since the case at bar involves a discriminatory classification based on illegitimacy, it is appropriate for us under Clark to examine the equal protection issues here on the level of intermediate scrutiny. On that level, a statutory classification must be substantially related to an important governmental objective. That objective in this case is not hard to determine: The statutory classification is based on the state’s interest in maintaining stable families and in the prevention of stale or fraudulent claims. Countervailing these state’s interests here established is likewise the state’s interest in requiring proper support for all children, lest they become a burden upon the state or others. A limitations statute must also be examined as to whether it affords a reasonable opportunity to bring such suits. In Mills, 456 U.S. at 105, 102 S.Ct. at 1558, the United States Supreme Court noted the unwillingness of a mother to file a paternity action on behalf of her child, which could stem from her relationship with the natural father or from the emotional strain of having an illegitimate child, or even from the desire to avoid community and family disapproval which might continue years after the child is born. That was one of the reasons why the United States Supreme Court in Clark struck down Pennsylvania’s six-year statute.
Other factors also militate against the constitutionality of our five-year statute. Under § 40-6-108, MCA, a child with a presumed father may establish the presumed father’s paternity at any time, which seems to negate any argument respecting stale claims. Moreover, advances in technology relating to genetic markers found in blood tests remove much of the fear of false or fraudulent claims of paternity. We noted the reliability of such blood tests in Rose [no relation to the parties at bar] v. District Court, Eighth Judicial District (1981), 192 Mont. 341, 628 P.2d 662; Wilson, 634 P.2d at 174. Under § 40-6-113(4), MCA, a district court may require the parties to submit to appropriate tests.
*346Indeed the accuracy of modern blood tests removes many of the justifications asserted for a five-year limitations statute. Such tests can refute false or fraudulent claims of paternity, or provide evidence that might otherwise be unavailable through the passage of time.
This case is prosecuted by the State of Arizona under the Uniform Reciprocal Enforcement of Support Act (URESA). The principal object of URESA actions is to fix the duty of support, an object that is accomplished here. The effect of this decision setting aside the five-year limitations in paternity actions should not be overestimated. We have simply set aside a time-bar that may otherwise have thwarted the truth in URESA or other paternity actions. There is no restraint under this decision that prevents a court in this state from considering other issues that might arise in such actions once the time-bar is lifted. The other provisions of URESA, as enacted in this state, take care of that. Thus our courts are not fenced off under URESA from considering other issues than support that may affect the child, or his adoptive, natural or presumed parents. Section 40-6-116, MCA, gives the Court in URESA actions broad latitude in fixing a judgment:
“40-16-116. Judgment or order. (1) The judgment or order of the Court determining the existence or nonexistence of the parent and child relationship is determined for all purposes.
“3(a) The judgment or order may contain any other provision directed against the appropriate party to the proceeding concerning the custody and guardianship of the child, visitation privileges with the child, the furnishing of bond or other security for the payment of the adjudgment, or any other matter in the best interest of the child.” (Emphasis added.)
So such issues as the best interest of the child can be separately considered by the Court in URESA actions.
On consideration of these relevant factors, we find the constitutional balance is tilted. The five-year limitation in this case is not substantially related to an important governmental objective, since ■under our statutes the limitations vary from case to case.
We therefore determine and hold, and agree with the District Court, that the five-year statute of limitations contained in § 40-6-108(l)(b), MCA, is unconstitutional.
We bring to the attention of the legislature, if it again considers this statute, a provision of the federal Child Support Enforcement Amendments of 1984 which requires all states participating in the *347federal child support program to have procedures to establish paternity of any child who is less than eighteen years old. 98 Stat. 1307, 42 U.S.C. § 666(a)(5).
Affirmed.
CHIEF JUSTICE TURNAGE and JUSTICES HARRISON, HUNT, McDONOUGH and WEBER concur.