OPINION
¶ 1 Plaintiffs/appellants Gregg Forszt and Vestar Arizona, XLI, L.L.C., appeal from the trial court’s denial of a writ of mandamus and declaratory judgment compelling defendant/appellee F. Ann Rodriguez, the Pima County Recorder, to disqualify the signature *264 sheets filed by intervenor Stop O.V. Outrageous Giveaways (SOVOG) requesting a referendum election in the Town of Oro Valley. Because we conclude the trial court correctly denied the relief requested, we affirm its ruling. 1
¶2 The facts relevant to this appeal are not in dispute. On April 7, 2004, the Town of Oro Valley adopted an ordinance that authorized it to enter into an economic development agreement with Vestar. The agreement provided that Vestar would develop a shopping center on land it owned in Oro Valley. In exchange, Oro Valley would share with Vestar a portion of thе sales tax revenues collected from the shopping center. SOVOG sought to challenge the ordinance by referendum and collected over 1,200 signatures on 118 signature sheets. SOVOG circulated the signature sheets with a copy of the ordinance attached while it was collecting these signatures, but removed the ordinance from the signature sheets before submitting the completed referendum petition to the Orо Valley town clerk. The clerk refused to accept the petition for filing on the ground that the ordinance was an administrative rather than a legislative act and, therefore, was not subject to referendum.
¶3 SOVOG filed a special action petition challenging the town clerk’s conclusion that the ordinance was not referable and sought an order requiring the clerk to transmit the petition to the Pima County recorder’s office for the verification of signatures (SOVOG I). Vestar intervened in the action and moved for summary judgment against SOVOG. SO-VOG filed a cross-motion for summary judgment against Vestar and moved for summary judgment against Oro Valley. The trial court granted Vestar’s motion on the basis that the ordinance was an administrative act and, thus, was not referable. On appeal, this court reversed that decision, holding that the ordinance was a legislative act subject to referendum. Stop O.V Outrageous Giveaways v. Cuvelier, No. 2 CA-CV 2004-0216 (decision order filed Feb. 11, 2005). On remand, the parties to SOVOG I stipulated to a form of judgment, which the trial court subsequently entered. That judgment expressly ordered the town clerk “to accept and transmit” the referendum petition to the Pima County recorder for verification of signatures.
¶ 4 SOVOG again attempted to submit its referendum petition to the town clerk. The clerk notified SOVOG that the petition was incomplete because the ordinance was not attached to the signature sheets as required by A.R.S. § 19-121(A)(3). SOVOG immediately requested permission to reattach the ordinance to the signature sheets. The clerk denied the request and refused to transmit the signature sheets to the recorder.
¶ 5 SOVOG again sought special action relief against the town clerk (SOVOG II). Vestar did not intervene in that proceeding. In its complaint, SOVOG argued that the doctrine of res judicata prevented the town clerk from refusing to transmit the signature sheets. SOVOG also argued that the clerk should have given SOVOG the opportunity to cure the technical defect. The trial court ruled in SOVOG’s favor, finding that the town clerk was barred by res judicata from refusing to transmit the petitions. The court declined to reach the issue of whether SO-VOG had cured or should have been allowed to сure any defect. The town clerk did not appeal the court’s ruling.
¶ 6 In compliance with the trial court’s order in SOVOG II, the town clerk transmitted a sample of the signed petitions to the Pima County recorder. See A.R.S. § 19-121.01(B) and (C). Vestar independently wrote to the Pima County recorder, asking her to disqualify SOVOG’s referendum petition pursuant to her authority under § 19— 121.01(A)(1)(a) because the signature sheets had not been filed with the clerk with the ordinance attached. The Pima County recorder respоnded that, in conformity with statutory procedure, she had only received a copy of “the front page” of the sample signa *265 ture sheets and, therefore, never possessed, nor would ever possess, the materials from which she could disqualify the referendum petition on that ground. The recorder verified that the referendum petition contained sufficient valid signatures for an election.
¶7 Forszt and Vestar then filed this action, seeking a writ of mandamus and declaratory judgment against the Pima County recorder to compel her to disqualify the signature sheets (SOVOG III). Forszt had not been a named party in any of the previous lawsuits concerning this issue. SOVOG intervened and opposed the request on the following grounds: (1) the signatures were still valid, notwithstanding the failure to attach the ordinance when filed, because the ordinance had been properly attached when the petitions had been circulated; (2) that the Pima County recorder did not have statutory authority to disqualify the signatures based on their condition at the time of filing with the town clerk; (3) under the doctrine of res judicata, the judgment in SOVOG I barred Forszt and Vestar from receiving the relief they sought; and (4) SOVOG would have cured the defect in a timely fashion had the town clerk allowed it to do so.
¶8 Although Forszt and Vestar did not dispute that the petitions had been circulated with the ordinance attached, they maintained that the failure to file the petitions in that form required that the Pima County recorder declare all signatures invalid. The trial court denied relief, finding that SOVOG had rebutted the presumption of invalidity that had arisen when it submitted the petition without copies of the ordinance attached and that equitable considerations weighed in favor of allowing the petition to be “placed before the voters.” This appeal followed.
PRESUMPTION OF VALIDITY
¶ 9 Forszt and Vestar first argue that the trial court erred by finding that SOVOG had restored the presumption of validity of the signature sheets. “Because election contests are statutory proceedings, we evaluate appellants’ argument by considering the applicable statutory scheme. We resolve questions of law involving statutory construction de novo.”
Open Primary Elections Now v. Bayless,
¶ 10 Arizona recognizes a strong public policy favoring the powers of initiative and referendum.
W. Devcor, Inc. v. City of Scottsdale,
¶ 11 Nonetheless, proponents’ failure to strictly comply with a procedural statutory requirement does not always necessitate that the referendum petition be declared void. In
Direct Sellers Ass’n v. McBrayer,
¶ 12 The legislature has adopted an approach to technical defects very similar to that announced in Direct Sellers and has directed that its statutory requirements be interpreted to enhance the right of referendum, stating its intent as follows:
If there is doubt about requirements of ordinances, charters, statutes or the constitution concerning only the form and manner in which the power of an initiative or referendum should be exercised, these requirements shall be broadly construed, and the effect of a failure to comply with these requirements shall not destroy the presumption of validity of citizens’ signatures, petitions or the initiated or referred measure, unless the ordinance, charter, statute or constitution expressly and explicitly makes ... fatal [any] departure from the terms of the law.
1989 Ariz. Sess. Laws, ch. 10, § 1;
see also Sherrill v. City of Peoria,
¶ 13 As pertinent here, article IV, pt. 1, § 1(9) of the Arizona Constitution provides, in part, that “[e]ach sheet containing petitioners’ signatures shall be attached to a full and correct copy of the title and text of the measure so proposed to be initiated or referred to thе people.” Section 19-112(B), A.R.S., restates this requirement,
Sherrill,
¶ 14 SOVOG indisputably complied with the constitutional provision that the ordinance be attached to the signature sheets and with the statutory restatement of that requirement that the ordinance be attached “at all timеs during circulation.” § 19-112(C). But it failed to strictly comply with an express statutory requirement when it filed its petition without the copies of the ordinance attached to each signature page. See § 19-121(A)(3) and § 19-121.01(A)(l)(a). Nevertheless, neither of the statutes containing this requirement “expressly and explicitly makes ... fatal [any] departure from the terms of the law.” 1989 Ariz. Sess. Laws, eh. 10, § 1. And, as in Direct Sellers, this requirement is valid only to the extent it does not unreasonably hinder and rеasonably supplements the constitutional purpose.
¶ 15 Based on the above analysis, SOVOG’s technical failure to comply with the statute’s filing requirement did not compel the trial court to declare the signatures void. Rather, the court was entitled to determine that SO-VOG had successfully restored the presumption that the signatures had been collected in the constitutionally required manner and were valid. Under the spеcific circumstances of this case, in which Forszt and Vestar have not disputed that the ordinance was attached to the petitions when they were circulated for signature, we conclude the trial court did not err when it found the presumption of the signatures’ validity had been restored.
¶ 16 Forszt and Vestar argue that the mere
circulation
of the petition with the
*267
ordinance attached did not suffice to restore the presumption of validity because SOVOG violated the statute by failing to
file
the petition with the ordinance attached — not by failing to circulate it properly. And they maintain that compliance with one statutory provision cannot remedy a failure to comply with a separate provision.
See W. Devcor,
¶ 17 But, unlike the situation addressed in
Western Devcor,
in whiсh the court emphasized that both relevant requirements played a substantial, independent role in assuring the validity of the signatures submitted,
¶ 18 Moreover, the courts and the legislature have specifically directed us to evaluate procedural oversights like the one here, and any effort to overcome them, in the context of “the presumption of validity.” 1998 Ariz. Sess. Laws, ch. 10, § 1;
Sherrill,
¶ 19 Our conclusion is reinforced by the supreme court’s own analysis in
Direct Sellers.
There, the proponents of the referendum had omitted from the circulator’s affidavit an avowal that the circulator was a qualified elector.
*268
¶ 20 Forszt and Yestar argue that allowing the above remedy for the filing defect here would have the effect of “reading out of existence” a statutory requiremеnt that the legislature saw fit to impose, an event
Western Devcor
requires us to avoid.
¶ 21 Forszt and Vestar assert that, even if SOVOG could restore the presumption of validity by demonstrating that the petitions had been properly circulated with the measure attached, they needed to do so within the initial thirty-day deadline for filing a petition for referendum. Our supreme court has held that the proponents of a referendum cannot obstruct the passage of legislation by amending a defective petition outside the deadline for its filing.
Direct Sellers,
To hold otherwise would allow a small minority of voters to present a protest to the passage of a law[,] ... have the protest found insufficient, file amendments, have those found insufficient, and in this obstructive manner prevent a law from going into effect for any number of years after its enactment.
Id.
at 6,
¶ 22 But the trial court’s ruling here was not based on any conclusion that SOVOG had amended its referendum petition or otherwise “cured” the defect. 3 Rather, the court found that SOVOG had restored the presumption of validity of the signatures by presenting indepеndent proof of proper compliance with the underlying requirements. And, although the supreme court has not clarified whether independent proof must also be presented within the deadline for filing the referendum petition, 4 the trial court *269 ultimately concluded that the presumption had been restored based on material that had been submitted within the deadline: affidavits printed on each signature sheet in which each circulator had avowed that the correct measure had been attached when circulated. Indeed, as noted earlier, Forszt and Vestar have not disputed that the ordinance was properly circulated with the petition and that the circulation occurred before the deadline. And SOVOG submitted a valid petition within the time limits. Any delay has been occasioned by the town clerk’s refusal to accept the petition and Forszt’s and Vestar’s institution of this litigation.
CONCLUSION
¶ 23 Because SOVOG had successfully restored the presumption of validity, the trial court did not err when it found that the signature sheets submitted to the Pima County recorder for verification were not invalid. Accordingly, we affirm the trial court’s grant of summary judgment in favor of SOVOG and the Pima County recorder.
Notes
. The Pima County Recorder cross-appealed, challenging the trial court’s deсision on the scope of her duties when referendum petitions are filed. Because we determine that she properly fulfilled her duties in this case, we need not determine the extent of her duties for other referendum petitions. Furthermore, any discussion of her duties in the trial court's order was unnecessary to the ultimate decision and has no binding effect. The cross-appeal is therefore moot.
. The statutory requirements for statewide referenda are imposed on the town by article IV, pt. 1, § 1(2) and (8) of the Arizona Constitution and A.R.S. § 19-141(C).
See Sedona Private Prop. Owners Ass’n v. City of Sedona,
. SOVOG has argued alternatively that it attempted to cure the defect within the effective deadline for filing the petition after the conclusion of SOVOG I. Given our conclusion that SOVOG timely restored the presumption of validity, we do not address that complex issue.
. In
De Szendeffy v. Threadgill,
