### ***********************************************The “officially released” date that appears near the beginning of each opinion is the date the opinion will be published in the Connecticut Law Journal or the date it wasreleased as a slip opinion. The operative date for the beginning of all time periods for filing postopinion motions and petitions for certification is the “officially released” date appearing in the opinion.

All opinions are subject to modification and technical correction prior to official publication in the Connecticut Reports and Connecticut Appellate Reports. In the event of discrepancies between the advance release version of an opinion and the latest version appearing in the Connecticut Law Journal and subsequently in the Connecticut Reports or Connecticut Appellate Reports , the latest version is to be considered authoritative.

The syllabus and procedural history accompanying the opinion as it appears in the Connecticut Law Journal and bound volumes of official reports are copyrighted by the Secretary of the State, State of Connecticut, and may not be reproduced and distributed without the express written permission of the Commission on Official Legal Publications, Judicial Branch, State of Connecticut. ***********************************************IN RE TEAGAN K.-O.* (SC 20245)

Robinson, C. J., and Palmer, McDonald, D’Auria, Mullins, Kahn and Ecker, Js.**

Syllabus

The respondent father appealed from the trial court’s denial of his motion to dismiss the petition filed by the petitioner, the Commissioner of Children and Families, to adjudicate T, the child of the respondentparents, neglected. T was born in Florida, and, after the Florida Department of Children and Families took emergency custody of T and contacted the Connecticut Department of Children and Families to report that the respondent mother had given birth to T, the petitioner filed the neglect petition at issue. Shortly thereafter, the Florida Department of
Children and Families filed in a Florida court a motion to transfer jurisdiction to the Connecticut court on the basis of the family’s history with service providers and child protective services in Connecticut. A Florida magistrate issued a report and a recommendation to grant themotion. The magistrate concluded that Connecticut was a more convenient forum, in part because the petitioner wanted to add T to a pending dependency case in Connecticut filed in connection with a petition for termination of the respondents’ parental rights with respect to T’s oldersibling. The Florida court ratified and adopted the magistrate’s recommendation to transfer jurisdiction to the Connecticut court. Subsequently, the father filed a motion to dismiss the pending neglect petition filed in Connecticut on the ground of lack of subject matter jurisdiction. The trial court denied that motion, and the father appealed, claiming,inter alia, that, regardless of whether a petition to terminate the respondents’ parental rights with respect to another child of the respondentswas pending in Connecticut when they relocated to Florida, a Connecticut court could not exercise subject matter jurisdiction over T’s neglect petition because any neglect of her would not occur in Connecticut. The petitioner claimed, inter alia, that the determination by a Florida court that Connecticut would be a more appropriate forum provided a proper basis for the Connecticut trial court’s subject matter jurisdiction under the Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA), which has been adopted by both Connecticut and Florida.

Held : 1. The trial court’s denial of the father’s motion to dismiss the neglect petition was immediately appealable because, although that decision was an interlocutory ruling, it constituted an appealable final judgment under the second prong of the test for determining the appealability of interlocutory orders set forth in State v. Curcio (191 Conn. 27), as there was a colorable claim that delaying a determination with respect to the issue of jurisdiction would cause irreparable harm to the parent-child relationship and the best interest of the child; the Connecticut court’s exercise of jurisdiction necessarily would have some adverse impact on the nature and extent of visitation and, in turn, the father’s ability to bond with T, and, if an appeal after an adverse decision on the merits resulted in a determination that the Connecticut court lacked subjectmatter jurisdiction over the neglect petition, the issue of neglect undoubtedly would have been relitigated in Florida, and such a delayed resolutionof that issue would have impacted T’s interests in permanency and stability. 2. The trial court improperly denied the father’s motion to dismiss the neglect petition because the failure to satisfy the statute (§ 46b-121 (a) (1))imposing a territorial limitation on jurisdiction over proceedings concerning allegedly neglected children prevented a Connecticut court from exercising jurisdiction over the petition, irrespective of whether the conditions for exercising jurisdiction under the UCCJEA were satisfied, as there were no allegations from which this court reasonably could infer that T likely would be neglected in this state: courts from other states that have considered whether a territorial limitation dictated by statute or common law must be satisfied even though the matter wasa child custody proceeding subject to the UCCJEA or its predecessor

have all indicated that the respective state’s territorial limitation mustbe satisfied; moreover, the purpose of the UCCJEA, which is to determine which state having jurisdiction will be permitted to exercise it when two or more states have concurrent jurisdiction, indicates that the UCCJEA does not permit the exercise of jurisdiction when the jurisdictional requirements of a statute specific to the matter at hand are not met, and, because the UCCJEA does not confer subject matterjurisdiction but, instead, determines whether a court may exercise jurisdiction or must defer to another state’s jurisdiction, it provided no impediment to statutes, such as § 46b-121, that determine the scope of jurisdiction; furthermore, contrary to the petitioner’s claim, giving effect to the territorial limitation set forth in § 46b-121 will not impede the operation of the UCCJEA by creating a possible scenario under which Florida lacks home state or significant connection jurisdiction, and Connecticut has significant connection jurisdiction under the UCCJEA but is prevented from exercising its jurisdiction because of the territorial limitation applicable to neglect proceedings, as Connecticut would not have significant connection jurisdiction if the territorial limitations under § 46b-121 were not met, and, even if Connecticut would have significant connection jurisdiction under the facts of the present case, Florida would be permitted to exercise jurisdiction under the UCCJEA’s temporary emergency jurisdiction provision. ( Three justices concurring in part and dissenting

in part in one opinion)

Argued March 27, 2019—officially released June 24, 2020***

Procedural History
Petition by the Commissioner of Children and Families to adjudicate the respondents’ minor child neglected, brought to the Superior Court in the judicial district of New London, Juvenile Matters at Waterford, where the court, Hon. Michael A. Mack , judge trial referee, deniedthe respondent father’s motion to dismiss, and the respondent father appealed. Reversed; decision directed.

Joshua Michtom , assistant public defender, with whom was Don M. Hodgdon, for the appellant (respondent father).

Evan O’Roark, assistant attorney general, with whom, on the brief, were William Tong, attorney general, Clare Kindall, solicitor general, and Benjamin Zivyon, assistant attorney general, for the appellee (petitioner).Opinion
McDONALD, J. This case requires us to consider whether a Connecticut trial court has subject matter jurisdiction over a petition to adjudicate a newborn child neglected on the basis of ‘‘predictive neglect’’ 1 when the parents relocated to another state shortly before the child’s birth, purportedly with no intention of returning, and that state determined that Connecticut would be a more convenient forum to adjudicate this matter. The respondent father appeals from the trialcourt’s decision denying his motion to dismiss the petition filed by the petitioner, the Commissioner of Children and Families, to adjudicate the respondents’ child,Teagan K.-O., neglected. The father contends that, irrespective of the fact that a petition to terminate the respondents’ parental rights with respect to another child of theirs was pending in Connecticut when they relocated to Florida, a Connecticut trial court cannot exercise subject matter jurisdiction over Teagan’s neglect petition because any neglect of her would never occur in this state. The commissioner contends that the determination by a Florida court that this state would be a more appropriate forum provided a proper basis for the Connecticut trial court’s subject matterjurisdiction under the Uniform Child Custody Jurisdiction and Enforcement Act (UCCJEA), which has been adopted by both states. 2 See General Statutes §§ 46b115 through 46b-115gg; Fla. Stat. Ann. § 61.501 et seq. (West 2012). We agree with the father’s jurisdictional argument. The trial court, therefore, improperly denied his motion to dismiss the neglect petition.

The record reveals the following facts that are undisputed for the purposes of the present appeal. 3 The respondents, both raised in Connecticut, have a lengthyhistory of involvement with the Connecticut Department of Children and Families. Each had been placed in the department’s custody as a teenager due to various mental health issues. The respondents’ involvement with the department continued after they had children.

The respondent mother’s first child, A, born in Connecticut in 2012, was conceived with someone other than the respondent father. In 2013, the department became involved with A due to concerns about the mother’s mental health, her parenting ability, and domestic violence, as well as concerns about possible physical abuse of A. A was adjudicated neglected, and, thereafter, sole custody was awarded to A’s father.

The respondents subsequently had three childrentogether; the first two children were born in Connecticut. Their first child, G, was removed from the respondents’ custody within one month of his birth in 2015, in light of the mother’s history and an incident of domesticviolence in G’s presence. Subsequently, G was adjudicated neglected and placed in the commissioner’s cus-tody. The respondents’ second child, J, was removed from the respondents’ custody immediately after his birth in 2016, on the ground that the respondents had not addressed mental health and parenting issues. InMarch, 2017, J was adjudicated neglected and committed to the commissioner’s custody. At that same time, the respondents’ parental rights with respect to G
were terminated.

In April, 2018, the commissioner filed a petition seeking to terminate the respondents’ parental rights with respect to J. The mother was then near full-term in her pregnancy with Teagan. The respondents paid a relative to drive them to Gainesville, Florida, where they signed a one year lease for an apartment.

In May, 2018, Teagan was born in a Gainesville hospital. The hospital contacted the Florida Department of Children and Families after information came to light that the respondents’ other children had been removed from their care. Two days after Teagan’s birth, when she was ready to be discharged from the hospital, the Florida department took emergency custody of her. 4 The Florida department contacted the Connecticut department to report that the mother had given birth.

One day after the Florida department took emergency custody of Teagan, the commissioner filed a motion in the Connecticut Superior Court for Juvenile Matters at Waterford (trial court) seeking temporary custody of Teagan and a petition seeking to adjudicate Teagan neglected on the ground that she would be subject to conditions injurious to her well-being if she remained in the respondents’ care or that she was denied proper
care and attention. 5 The motion for temporary custodywas denied on the ground that the child was not in Connecticut.

Shortly thereafter, the Florida department filed in the Circuit Court of the Eighth Judicial Circuit of Florida, Juvenile Division (Florida court), a ‘‘motion to transfer jurisdiction’’ to the Connecticut trial court on the basis of the family’s history with service providers and child protective services in this state. The respondents opposed the motion. A Florida general magistrate helda contested hearing on the motion, at which the respondents were represented by separate counsel. Followingthe hearing, the magistrate issued a report and a recommendation to grant the motion.

The recommendation rested on the following factual findings. An open dependency case in Connecticut wasthen pending on a petition for termination of the respondents’ parental rights with respect to Teagan’s sibling, J. The commissioner wanted to add Teagan to the open dependency case. The respondents had admitted to the Florida department that they traveled to Florida before Teagan’s birth to avoid further involvement with the Connecticut department. Witnesses and persons withknowledge of the issues pertaining to Teagan’s possibleneglect and to the possible termination of the respondents’ parental rights as to J reside in Connecticut. The respondents previously had been involved with the Connecticut department as children, and their parentalrights with respect to another child had been terminated. Teagan’s guardian ad litem and the Connecticut department both supported the transfer of jurisdiction. The Florida court had verified with the Connecticut trial court, Driscoll

, J. , that the Connecticut court wanted to, and would, accept jurisdiction. 6

The magistrate acknowledged that the respondents opposed the transfer of jurisdiction and that, in support of their opposition, they had presented a copy of their Florida lease and represented that the father was employed in Gainesville. 7 The magistrate also acknowledged that the respondents had offered to consent toTeagan’s dependency if the Florida court retained jurisdiction, to eliminate the need for witnesses and to allow the court to rely solely on documentation from the Connecticut department to establish a reunification plan. The magistrate noted, however, that the Florida department and Teagan’s guardian ad litem represented that they had no intention of offering or supporting reunification should the Florida court retain jurisdiction and, instead, would seek to terminate the respondents’ parental rights with respect to Teagan on the basis of the respondents’ prior history.

The magistrate’s report concluded: ‘‘Connecticut is a more convenient forum state, and the court finds that it is in the best interests of the child . . . and willpromote the efficient administration of justice to transfer jurisdiction to Connecticut.’’ The following day, after the parties waived the period for filing exceptions to the magistrate’s report, the Florida court ratified and adopted the magistrate’s recommendation to transfer jurisdiction to the Connecticut court.

The commissioner then renewed her request for an ex parte order for temporary custody of Teagan in the trial court, which the court, Driscoll

, J. , granted. Teagan was brought to Connecticut and placed with the same foster family caring for her sibling, J.

The father filed a motion to dismiss the pending neglect petition on the ground of lack of subject matter jurisdiction. 8 Appended to the motion were copies of the respondents’ Florida lease, a pay stub from the father’s Florida employment, and the father’s Floridavoter registration card, which was issued after the Florida court proceeding. The commissioner opposed themotion, contending that the Florida court’s inconvenient forum determination established a basis for the Connecticut trial court’s subject matter jurisdiction under the UCCJEA. After a contested hearing on the motion, the trial court, Hon. Michael A. Mack , judge trial referee, opened the evidence twice—once to takeevidence that the father had appealed from the Florida court’s decision granting the motion to transfer, and again to take evidence that the First District Court of Appeal of Florida had issued a per curiam, summary affirmance.

The Connecticut trial court denied the father’s motion to dismiss. The court cited two reasons. First, the trial court reasoned that a Florida District Court of Appeal had affirmed that jurisdiction rests with Connecticut courts, after the respondents had had an opportunity to present evidence in that forum on the matter and had failed to present such evidence. Second, the trial court determined that the respondents could not seek equitable redress because they did not come to the court with clean hands, given their admission to the Florida department that they had traveled to Florida to avoid involvement with the Connecticut department. 9 Ultimately, the trial court concluded that ‘‘it has subject matter jurisdiction over Teagan’s case following the dictates of the [UCCJEA] in that a court of Florida has declined to exercise jurisdiction on the ground that Connecticut is the more appropriate forum, [a FloridaDistrict Court of Appeal] has affirmed that, and Connecticut has accepted that conclusion.’’

The father appealed from the trial court’s decision denying his motion to dismiss to the Appellate Court. We transferred the appeal to this court pursuant to General Statutes § 51-199 (c) and Practice Book § 65- 1. After the father filed his brief with this court, but before the commissioner filed her appellate brief, the commissioner filed a petition in the trial court seeking to terminate the respondents’ parental rights with respect to Teagan.

I

Before we can consider whether the trial court properly denied the motion to dismiss, we must determinewhether that decision is immediately appealable. Ordinarily, a denial of a motion to dismiss on jurisdictional grounds is an interlocutory ruling, not a final judgment;
see, e.g., Chrysler Credit Corp. v. Fairfield ChryslerPlymouth, Inc. , 180 Conn. 223, 227–28, 429 A.2d 478 (1980); see also Dayner v. Archdiocese of Hartford, 301 Conn. 759, 768, 23 A.3d 1192 (2011); which is a statutory prerequisite to appellate jurisdiction in most instances. See, e.g., State v. Anderson , 318 Conn. 680, 698 n.6, 122 A.3d 254 (2015). To surmount that obstacle, the trial court’s decision in the present case must fall within one of two circumstances in which an interlocutory order has the attributes of a final judgment so as to permit immediate appeal, either ‘‘(1) where the order or action terminates a separate and distinct proceeding, or (2) where the order or action so concludes the rights of the parties that further proceedings cannot affect them.’’ State v. Curcio , 191 Conn. 27, 31, 463 A.2d 566 (1983). The parties contend that the present circum-stances satisfy the second prong of Curcio , although they disagree on the underlying rationale. We agree with one of the arguments advanced by the father as to why the trial court’s ruling is immediately appealable. 10

‘‘The second prong of the Curcio test focuses on the nature of the right involved. It requires the parties seeking to appeal to establish that the trial court’s order threatens the preservation of a right already secured to them and that that right will be irretrievably lost and the [parties] irreparably harmed unless they may immediately appeal. . . . One must make at least acolorable claim that some recognized statutory or constitutional right is at risk.’’ (Internal quotation marks omitted.) Dayner v. Archdiocese of Hartford, supra, 301 Conn. 769.

A constellation of constitutional and statutory rights serve to protect the integrity of the family unit, the parent-child relationship, and the best interest of the child. See General Statutes § 46b-135; In re Jonathan M. , 255 Conn. 208, 231, 764 A.2d 739 (2001); State v. Anonymous , 179 Conn. 155, 162–63, 425 A.2d 939(1979). ‘‘The fundamental liberty interest of natural parents in the care, custody, and management of their child does not evaporate simply because they have not been model parents or have lost temporary custody of their child to the [s]tate.’’ (Internal quotation marks omitted.)
In re Valerie D. , 223 Conn. 492, 513, 613 A.2d 748 (1992). ‘‘[C]ourts and state agencies must keep in mind the constitutional limitations imposed [on them when they undertake] any form of coercive intervention in family affairs . . . [which includes] the right of the family to remain together without the . . . interference of the awesome power of the state.’’ (Internal quotation marks omitted.) In re Shamika F. , 256 Conn. 383, 403, 773 A.2d 347 (2001).

There is a ‘‘unique place that family courts hold in this state’s jurisprudence. 11 This court has a long history of concluding that, within the context of family matters,orders that would otherwise be considered interlocutory constitute appealable final judgments. . . . Taken as a whole, these cases demonstrate that, [o]n balance, we [have been] more persuaded by the rationale for allowing an immediate appeal of . . . temporary . . .order[s] [in family matters] than by the traditional reasons of judicial economy that might otherwise have precluded [their] review.’’ (Citations omitted; footnote added; internal quotation marks omitted.) Khan v. Hillyer, 306 Conn. 205, 213–14, 49 A.3d 996 (2012). Wehave reached this result because even temporary disruptions to the parent-child relationship can result in irreparable harm. When children have been temporarily removed from their parents’ care, we have determined that ‘‘an immediate appeal is the only reasonablemethod of ensuring that the important rights surrounding the parent-child relationship are adequatelyprotected . . . and . . . is the only way to ensure the protection of the best interests of children.’’ (Citation omitted; internal quotation marks omitted.) In re Shamika F ., supra, 256 Conn. 385; see also Madigan v. Madigan , 224 Conn. 749, 754–55, 620 A.2d 1276 (1993). This concern may also extend to orders potentially affecting visitation. 12 See Taff v. Bettcher, 243 Conn. 380, 386–87,703 A.2d 759 (1997) (recognizing that court order imposing one year bar on review of custody and visitation orders may interfere with parent’s custodial rights in
manner that cannot be redressed later and cause harm to child, as ‘‘[a] lost opportunity to spend significant time with one’s child is not recoverable’’).

There is a colorable claim in the present case that delaying a determination on the question of jurisdictionwould cause irreparable harm to the parent-child relationship and the best interest of the child. The trial court’s exercise of jurisdiction necessarily would havesome adverse impact on the nature and extent of visitation and, in turn, the father’s ability to bond with his infant daughter. 13 Even if we assume that the Connecticut department would be willing to pay for the father’stravel, the combination of distance and employment obligations undoubtedly limit in person visitation opportunities. Although the commissioner’s petition for termination of parental rights indicates that the family caringfor Teagan has facilitated remote audiovisual interactions, i.e., FaceTime, between the father and Teagan, such interactions are a poor substitute for a parent’s
embrace.

In addition to the impact on visitation, a broader concern is implicated under the particular facts of this case. This court has recognized the importance of a child’s interest in permanency and stability. See In re Davonta V. , 285 Conn. 483, 494–95, 940 A.2d 733 (2008). A delayed implementation of a permanency plan, whether aimed at reunification or termination, is of particular concern under the present circumstances.Unlike the typical challenge to subject matter jurisdiction, if an appeal after an adverse decision on the merits results in a determination that the court lacked subject matter jurisdiction over the neglect petition, the issue of neglect no doubt would be relitigated in Florida. The commissioner agrees that the possibility of such a delayed resolution clearly would be detrimental to Teagan. 14 Under these circumstances, we are persuaded that the present interlocutory appeal meets the second prong of Curcio

. II

Having concluded that the father may appeal from the trial court’s decision denying his motion to dismiss, we turn to the merits of the appeal. The parties agree that, despite the fact that the Florida court never referred to the UCCJEA in its decision ‘‘transferr[ing]’’ jurisdiction to Connecticut, a state cannot exercisejurisdiction over a neglect petition unless it is authorized to do so under that act. Where the parties’ positionsdiverge is on the question of whether there is a jurisdictional requirement specific to neglect proceedings—the child must have been, or is likely to be, neglected in this state—that also must be met. 15

A

We begin with an overview of the provisions governing jurisdiction over neglect proceedings and then consider the parties’ arguments as to their application.

General Statutes § 46b-1 prescribes family relations matters within the jurisdiction of the Superior Court. One such matter is ‘‘juvenile matters as provided in section 46b-121 . . . .’’ General Statutes § 46b-1 (11).Juvenile matters, as provided in General Statutes § 46b121, 16 ‘‘include all proceedings concerning uncared-for, neglected or abused children within this state . . . .’’ (Emphasis added.) General Statutes § 46b-121 (a) (1); see also General Statutes § 46b-121 (a) (2) (defining juvenile matters in criminal session). Some version of this limiting language has been in the statute governing neglect proceedings since 1921. See Public Acts 1921, c. 336, § 3; see also, e.g., General Statutes (Supp. 1943) § 380g; Public Acts 1976, No. 76-436, § 14.

Another family relations matter within the Superior Court’s jurisdiction is any matter ‘‘affecting or involving . . . custody proceedings brought under the provisions of chapter 815p [the UCCJEA] . . . .’’ General Statutes § 46b-1 (17). The UCCJEA, adopted by this state in 1999; see Public Acts 1999, No. 99-185; replaced a largely similar scheme adopted in 1978, known as the Uniform Child Custody Jurisdiction Act (UCCJA). See Public Acts 1978, No. 78-318; see also Public Acts 1999, No. 99-185, §§ 39, 40 (repealing General Statutes §§ 46b-90 through 46b-114). The UCCJEA broadly defines a ‘‘child custody proceeding’’ to include proceedings for neglect, abuse, dependency, and termination of parental rightsin which custody might be an issue. See General Statutes § 46b-115a (4).

The UCCJEA provision relevant to the present case, General Statutes § 46b-115k, provides in relevant part: ‘‘(a) Except as otherwise provided in section 46b-115n [temporary emergency jurisdiction], a court of this statehas jurisdiction to make an initial child custody determination if:
‘‘(1) This state is the home state 17 of the child on thedate of the commencement of the child custody proceeding;
‘‘(2) This state was the home state of the child within six months of the commencement of the child custody proceeding, the child is absent from the state, and a parent or a person acting as a parent continues to reside in this state;‘‘(3) A court of another state does not have jurisdiction under subdivisions (1) or (2) of this subsection, the child and at least one parent or person acting as a parent have a significant connection with this stateother than mere physical presence, and there is substantial evidence available in this state concerning thechild’s care, protection, training and personal relationships;
‘‘(4) A court of another state which is the home state of the child has declined to exercise jurisdiction on the ground that this state is the more appropriate forumunder a provision substantially similar to section 46b115q [inconvenient forum] or section 46b-115r [unjustifiable conduct], 18 the child and at least one parent or person acting as a parent have a significant connection with this state other than mere physical presence, andthere is substantial evidence available in this state concerning the child’s care, protection, training and personal relationships;
‘‘(5) All courts having jurisdiction under subdivisions (1) to (4), inclusive, of this subsection have declined jurisdiction on the ground that a court of this state is the more appropriate forum to determine custody under a provision substantially similar to section 46b-115q or section 46b-115r; or

‘‘(6) No court of any other state would have jurisdiction under subdivisions (1) to (5), inclusive, of this subsection. . . .’’ (Footnotes added.)

For convenience, these jurisdictional bases areknown as home state jurisdiction, significant connection jurisdiction, more appropriate forum jurisdiction,and default or vacuum jurisdiction. See Unif. Child Custody Jurisdiction and Enforcement Act (1997) prefatorynote, 9 U.L.A. (Pt. IA) 461–62 (2019); id., § 201, comments (1) and (2), 9 U.L.A. (Pt. IA) 504–506; see alsoP. Hoff, Office of Juvenile Justice and Delinquency Prevention, Office of Justice Programs, ‘‘The Uniform Child-Custody Jurisdiction and Enforcement Act,’’ Juv. Just. Bull., December, 2001, pp. 2, 5–6, available at https://www.ncjrs.gov/pdffiles1/ojjdp/189181.pdf (last visited June 24, 2020).

Section 46b-115k of the UCCJEA further provides:‘‘(b) Subsection (a) of this section is the exclusive jurisdictional basis for making a child custody determination by a court of this state.
‘‘(c) Physical presence of, or personal jurisdiction over, a party or a child is not necessary or sufficient to make a child custody determination.’’ 19

The drafters’ comment to subsection (c) explains: ‘‘[N]either minimum contacts nor service within the [s]tate is required for the court to have jurisdiction to make a custody determination. . . . The requirements of this section, plus the notice and hearing provisionsof the [a]ct, are all that is necessary to satisfy due process.’’ 20 Unif. Child Custody Jurisdiction and Enforcement Act (1997) § 201, comment (2), supra, 9 U.L.A. (Pt. IA) 506.

B
The father contends that § 46b-121’s ‘‘neglected . . .within this state’’ limitation on jurisdiction is not satisfied and that it controls the outcome of the presentcase, whereas the commissioner contends that jurisdiction exists under the UCCJEA and that the act controls exclusively because more than one state is implicated. We begin our analysis with the effect of § 46b121 rather than the UCCJEA for two reasons. First, the Florida court’s decision does not clearly reflect that it in fact relied on the UCCJEA to ‘‘transfer’’ jurisdiction to our trial court and, if so, on what jurisdictional basis. That decision is devoid of any express reference to the UCCJEA by name or statutory provision. It invokes none of the UCCJEA’s jurisdictional labels commonly reliedon by courts, lacks factual findings necessary to support certain jurisdictional grounds, and omits material considerations from the UCCJEA’s inconvenient forum analysis. 21 Both of the parties to the Florida proceeding, of which the Connecticut commissioner was not one,agree that the court only was exercising temporary emergency jurisdiction and was not exercising jurisdiction under any one of the grounds prescribed in § 46b-115k.

By contrast, it is undisputed that § 46b-121’s territorial limitation on jurisdiction—‘‘neglected . . . children within this state’’—is not satisfied. 22 Although this phrase has not previously been construed by our courts, whether it means that neglect has occurred or likelywill occur within this state, that a child neglected elsewhere is currently present in this state, and/or that the child’s domicile is in this state, none of these conditions
exists. 23 We agree with the father that the failure to satisfy § 46b-121 prevents Connecticut from exercising jurisdiction over the neglect petition, irrespective of whether the conditions for exercising jurisdiction under the UCCJEA would be met.

We begin with the observation that, prior to the enactment of the UCCJEA, there was some question as to whether its predecessor, the UCCJA, applied to neglect and dependency proceedings. See Unif. Child Custody Jurisdiction and Enforcement Act (1997) prefatory note, supra, 9 U.L.A. (Pt. IA) 463. The UCCJEA made clear that it did apply to such proceedings. See id., § 102 (4), 9 U.L.A. (Pt. IA) 475. When our legislature adopted the broadly applicable UCCJEA, it did not eliminate theterritorial limitation in § 46b-121 specific to neglect proceedings.

Although many states do not impose such a territorial limitation, 24 doing so is not unique to Connecticut or to neglect proceedings. Such a limitation may be dic-tated by statute or by common law. See, e.g., La. Code Civ. Proc. Ann. art. 10 (A) (Cum. Supp. 2020) (‘‘[a] court which is otherwise competent under the laws of thisstate has jurisdiction of the following actions or proceedings only under the following conditions . . . (5) [a] proceeding to obtain the legal custody of a minor if he is domiciled in, or is in, this state’’); Mich. Comp. Laws Serv. § 712A.2 (b) (LexisNexis Cum. Supp. 2019) (neglected juvenile ‘‘found within the county’’); Mo. Ann. Stat. § 211.031 1. (1) (West 2017) (neglected child ‘‘who may be a resident of or found within the county’’); Mont. Code Ann. § 41-3-103 (1) (a) (2019) (neglectedyouth ‘‘who is within the state of Montana for any purpose’’); N.H. Rev. Stat. Ann. § 170-C:3 (2014) (‘‘jurisdiction over petitions to terminate the parent-child relationship when the child involved is present in the state or is in the legal custody or legal guardianship of an authorized agency located in the state’’); N.C. Gen. Stat. § 7B-1101 (2019) (‘‘termination of parental rights to any juvenile who resides in, is found in, or is in the legalor actual custody of a county department of social services or licensed child-placing agency in the district at the time of filing of the petition or motion’’); Okla. Stat. Ann. tit. 10A, § 2-2-102 (A) (1) (West 2018) (jurisdiction where child ‘‘resides,’’ ‘‘is found,’’ or ‘‘is alleged to be or is found to be in need of supervision’’); R.I. Gen. Laws § 14-1-5 (1) (Cum. Supp. 2019) (neglected child ‘‘residing or being within the state’’); W. Va. Code Ann. § 49-4-601 (a) (LexisNexis 2015) (‘‘in the county in which the child resides, or if the petition is being brought by the department, in the county in which the custodial respondent or other named party abuser resides, or in which the abuse or neglect occurred’’); Arizona Dept. of Economic Security v. Grant ex rel. Maricopa , 232 Ariz. 576, 581, 307 P.3d 1003 (App. 2013) (recognizing that jurisdiction exists, not only when neglect or abuse of child occurred in state, but also when child subject to abuse or neglect is present in state); In re Shaw , 449 S.W.2d 380, 382 (Mo. App. 1969) (‘‘[t]o expand a juvenile court’s jurisdiction to include children outside the court’s territorial boundarieswould contravene a general principle of jurisprudence’’); In re Juvenile 2002-098, 148 N.H. 743, 746–47, 813 A.2d 1197 (2002) (relying on traditional parenspatriae power of state and broad language of state statute to allow court to exercise jurisdiction over ‘‘any case involving a child found within the [s]tate who is alleged to have been abused or neglected, no matter where the abuse or neglect is alleged to have occurred’’); In re Westchester County Dept. of Social Services , 211 App. Div. 2d 235, 236–38, 627 N.Y.S.2d 735 (1995) (although abuse occurred out of country, court could exercise jurisdiction because child was then in state).

Several courts have considered whether such a territorial limitation must be satisfied even though the mat-ter is a child custody proceeding subject to the UCCJEA.Some of these cases involved the UCCJA, the predecessor to the UCCJEA, but they are equally relevant because both acts prescribed the same grounds for the exercise of initial custody jurisdiction, including homestate, significant connection, etc., and deemed the physical presence of the child not to be a prerequisite to jurisdiction. See Unif. Child Custody Jurisdiction Act (1968) § 3, 9 U.L.A. (Pt. IA) 106–107 (2019). Although taking different approaches, all of them indicate that the territorial limitation must be satisfied.

In several of these cases, the courts determined that the limitation specific to the matter (e.g., neglect) and the conditions under the UCCJEA both had to be met for the court to exercise jurisdiction. See State ex rel. R.P. v. Rosen, 966 S.W.2d 292, 297–98 (Mo. App. 1998) (framing issue as whether Missouri has jurisdiction overabuse and neglect proceeding both under statute vesting juvenile court with jurisdiction in proceedings ‘‘[i]nvolving any child or person seventeen years of age who may be a resident of or found within the county and who is alleged to be in need of care and treatment’’and under UCCJA (emphasis omitted; internal quotation marks omitted)); In re K.U.-S.G. , 208 N.C. App. 128, 131, 702 S.E.2d 103 (2010) (‘‘Our Juvenile Code grants district courts ‘exclusive original jurisdiction to hear and determine any petition or motion relating to termination of parental rights to any juvenile who resides in, is found in, or is in the legal or actual custody of a county department of social services or licensed child-placing agency in the district at the time of filingof the petition or motion.’ . . . Nevertheless, the jurisdictional requirements of the UCCJEA also must be satisfied for the [D]istrict [C]ourt to have authority to adjudicate termination actions.’’ (Citation omitted.));
In re D.D.J. , 177 N.C. App. 441, 443, 628 S.E.2d 808 (2006) (concluding that subject matter jurisdiction was lacking under termination of parental rights statute because child neither resided in state, was found in state, nor was in state’s custody when petition was filed, and there was no further consideration of UCCJEA); In re Bean , 132 N.C. App. 363, 366, 511 S.E.2d 683 (1999) (court must engage in ‘‘a two-part process’’ to determine whether it has jurisdiction, under requirements of both UCCJA and those under parental termination statute); In re Leonard, 77 N.C. App. 439, 440–41, 335 S.E.2d 73 (1985) (holding that, despite fact that North Carolinacourt had jurisdiction under UCCJA, state lacked jurisdiction because requirement of termination of parental rights statute—child resided or was found in district at time petition was filed—was not met: ‘‘[although] a determination of jurisdiction over child custody matterswill precede a determination of jurisdiction over parental rights, it does not supplant the parental rights proceedings’’ (emphasis omitted)); 25 see also Arizona Dept. of Economic Security v. Grant ex rel. Maricopa, supra,232 Ariz. 579–81 (first determining that jurisdiction was proper under UCCJEA and then rejecting argument that subject matter jurisdiction was improper because alleged abuse or neglect occurred outside of state, citingcase law from New York and New Hampshire supporting exercise of jurisdiction when neglected or abused child is found within state, even if abuse and neglect did not occur in state).

In two other cases, the courts recognized the controlling force of the territorial limitation but limited its scope of operation. Both cases involved statutes vesting the state’s court with ‘‘ ‘exclusive original jurisdiction’ ’’ over proceedings to terminate parental rights with respect to a child who resides or is found within the

state. In re G. B. , 167 N.H. 99, 102, 105 A.3d 615 (2014); accord In re H.L.A.D. , 184 N.C. App. 381, 385, 646 S.E.2d 425 (2007), aff’d, 362 N.C. 170, 655 S.E.2d 712 (2008). The courts distinguished ‘‘exclusive, original’’ jurisdiction subject to the territorial limitation in the termination statute from ‘‘exclusive, continuing’’ jurisdiction in the UCCJEA, 26 giving each an independent sphere of operation. See In re G. B. , supra, 105 (The forum’s originaljurisdiction statute and the UCCJEA’s continuing jurisdiction provision ‘‘independently grant jurisdictionunder the circumstances set forth in each. That jurisdiction under one is not supported on a given set of facts does not preclude jurisdiction under the other.’’); 27 In re H.L.A.D. , supra, 386–87 (noting distinction between ‘‘ ‘exclusive, original jurisdiction’ ’’ of termination statute and ‘‘ ‘exclusive, continuing jurisdiction’ ’’ of UCCJEA, and, although former authorizes court to adjudicate termination of parental rights when circumstancesspecified exist, ‘‘[t]his . . . does not preclude the [D]istrict [C]ourt’s exercise of jurisdiction in circumstances in which the court already has ‘exclusive, continuing jurisdiction’ pursuant to the UCCJEA’’). The courts deemed the territorial limitation applicable to initial custody determinations but not to modifications of such a determination.

The only cases we have found that have not deemed the territorial limits controlling support, rather thanundermine, the father’s claim in the present case. Louisiana appears to be one of the only states with a statuteprescribing a territorial limitation specifically applicable to custody cases. Cf. Feriole v. Feriole , 468 So. 2d 1090, 1091 (Fla. App. 1985) (‘‘For many years it was the law of [Florida] that a court had no jurisdiction to initially adjudicate the question of the custody of a minor child unless that child was physically present within the territorial jurisdiction of the court at the time the [action] seeking an adjudication of his custody was filed. . . . However, Florida adopted the [UCCJA]effective October 1, 1977, which superseded prior Florida law in this area.’’ (Citation omitted.)). Article 10 of the Louisiana Code of Civil Procedure provides in relevant part: ‘‘A court which is otherwise competentunder the laws of this state has jurisdiction of the following actions or proceedings only under the followingconditions . . . [a] proceeding to obtain the legal custody of a minor if he is domiciled in, or is in, this

state . . . .’’ (Emphasis added.) La. Code Civ. Proc. Ann. art. 10 (A) (5) (2014). In Gusman v. Gusman , 598 So. 2d 1256 (La. App. 1992), the court considered an appeal from the trial court’s decision dismissing a custody matter filed by the father on the ground that Louisianadid not have jurisdiction over the matter because Virginia, where the children and the mother presently resided, was the children’s home state under the UCCJA. See id., 1257–58. On appeal, the father argued that Louisiana had jurisdiction under the predecessor to article 10 (A) (5) of the Louisiana Code of Civil Procedure because it was his domicile and, in turn, his children’s domicile. Id., 1257. The Louisiana Court ofAppeal rejected that argument, holding ‘‘that when Louisiana adopted the [UCCJA] the [l]egislature intendedthat law to supersede all laws in conflict with it, including [the predecessor to article 10 (A) (5)]. [Although] this does not mean [that article 10 (A) (5)] was facially repealed, it does mean that it was repealed as to its applicability when in conflict with the [UCCJA] . . . .’’ Id., 1258. In Banerjee v. Banerjee , 258 So. 3d 699 (La.App. 2017), the Louisiana Court of Appeal stated, perhaps more clearly, in a case arising under the UCCJEA: ‘‘Louisiana courts have jurisdiction over a minor’s status in a ‘proceeding to obtain the legal custody of a minor if he is domiciled in, or is in, this state.’ La. Code Civ. [Proc. Ann.] art. 10 (A) (5) [2014]. However, a second tier of inquiry into the jurisdiction over custody issues exists under the UCCJEA . . . . Even if a Louisiana court has subject matter jurisdiction, that jurisdiction must be declined based on limitations imposed by the UCCJEA.’’ (Citation omitted.) Banerjee v. Banerjee

, supra, 701–702.

These Louisiana cases stand for the unremarkable proposition that, even if jurisdiction is authorizedunder the territorial limitation, the exercise of jurisdiction may be limited or precluded in a given case by the UCCJEA. See Rosen v. Celebrezze , 117 Ohio St. 3d 241, 249, 883 N.E.2d 420 (2008) (‘‘the mere fact that the Ohio court has basic statutory jurisdiction to determine custody matters in [legal separation] and divorce cases . . . does not preclude a more specific statute like [a provision under Ohio’s UCCJA] from patently and unambiguously divesting the court of such jurisdiction’’ (citations omitted)). Our concern in the present case, of course, is with the converse—whether, when the jurisdictional requirements of a statute specific to the matter at hand are not met, the UCCJEA nonetheless permits the exercise of jurisdiction.

Not only do the cases previously discussed indicate that this question must be answered in the negative, but so too does the purpose of the UCCJEA. A paramountpurpose of the act is to determine which state having jurisdiction will be permitted to exercise it when two or more states have concurrent jurisdiction. 28 See In re Marriage of Sareen, 153 Cal. App. 4th 371, 376, 62 Cal. Rptr. 3d 687 (2007) (‘‘UCCJEA is the exclusive method of determining subject matter jurisdiction in custody disputes involving other jurisdictions’’), cert. denied sub

nom. Sareen v. Sareen, 552 U.S. 1259, 128 S. Ct. 1670, 170 L. Ed. 2d 357 (2008); Brown v. Brown , 195 Conn. 98, 107, 486 A.2d 1116 (1985) (UCCJA ‘‘envisages that where concurrent jurisdiction exists, only one state should exercise that jurisdiction’’ (emphasis in original)); In re J.R. , 33 A.3d 397, 400 (D.C. 2011) (‘‘[theUCCJEA] establishes the bases for subject matter jurisdiction over custody matters in the District [of Columbia], setting forth rules to govern jurisdiction whenmore than one state may be involved, in order to prevent jurisdictional conflicts’’); Ball v. McGowan, 497 S.W.3d 245, 249 (Ky. App. 2016) (‘‘Broadly speaking,[the UCCJEA’s] purpose is to avoid jurisdictional conflict and competition in custody matters . . . and to promote uniformity. . . . To effect this purpose, the UCCJEA provides rules for determining jurisdiction in custody cases involving multiple states.’’ (Citations omitted; footnote omitted; internal quotation marks omitted.)); Rosen v. Celebrezze , supra, 117 Ohio St. 3d 248 (‘‘the primary purpose of the [UCCJEA is] . . . to avoid jurisdictional competition’’); In re R.W. , 191 Vt. 108, 126–27, 39 A.3d 682 (2011) (‘‘[t]he UCCJA wascreated to end the interstate custody jurisdictional tugof-war between states’’ (internal quotation marks omitted)); In re Custody of A.C. , 165 Wn. 2d 568, 574, 200P.3d 689 (2009) (‘‘The UCCJEA arose out of a conference of states in an attempt to deal with the problems of competing jurisdictions [issuing] conflicting interstate child custody orders, forum shopping, and the drawn out and complex child custody legal proceedings often encountered by parties where multiple states are involved. . . . Most states have adopted the UCCJEA in order to reduce conflicting orders regarding custodyand placement of children.’’ (Citations omitted; footnote omitted.)); In re NC, 294 P.3d 866, 872 (Wyo. 2013)(‘‘[t]he dominant objective of the [UCCJEA] is to eliminate the simultaneous exercise of jurisdiction over custody disputes by more than one state’’ (internal quotation marks omitted)).

The UCCJEA’s purpose of preventing the exercise ofconcurrent jurisdiction is reflected in that act’s designation of § 46b-115k (a) as ‘‘the exclusive jurisdictional basis for making a child custody determination by a court of this state.’’ General Statutes § 46b-115k (b). This provision recognizes that, even though a state mayhave subject matter jurisdiction over the custody matter, it may be required to decline to exercise that jurisdiction if § 46b-115k (a) designates another state as having priority.This means, as many courts have recognized, thatthe UCCJEA, like its predecessor, does not create jurisdiction but prescribes the circumstances under which jurisdiction that otherwise is conferred by constitution or statute can be exercised in a given case. See, e.g., In re Marriage of Holder, Docket No. F036747, 2002 WL 443397, *5 (Cal. App. March 20, 2002) (‘‘[d]espite the existence of fundamental jurisdiction [in the CaliforniaSuperior Court], the UCCJEA severely limits the exercise of superior court custody jurisdiction where there are interstate or international aspects to the litigation’’); McCormick v. Robertson, 15 N.E.3d 968, 974 (Ill. App. 2014) (‘‘whereas the UCCJEA may procedurally limitthe circumstances in which a [C]ircuit [C]ourt may exercise its power to render a custody determination . . .it may not deprive the [C]ircuit [C]ourt of its constitutionally derived [subject matter] jurisdiction to decide the matter in the first place’’ (citation omitted)), aff’d, 28 N.E.3d 795 (Ill. 2015); Williams v. Williams , 555N.E.2d 142, 144–45 (Ind. 1990) (‘‘Resolution of the subject matter jurisdiction issue involves determining whether the claim advanced falls within the general scope of authority conferred upon the court by the constitution or statute. . . . The authority to hear child custody cases is not directly granted by the UCCJA. Rather, [the UCCJA] merely operates to restrict theexisting power of courts to hear custody cases.’’ (Citation omitted.)); In re A.A.-F. , 310 Kan. 125, 135, 444 P.3d 938 (2019) (‘‘By statute, Kansas district courts have general original jurisdiction of all matters, both civil and criminal, unless otherwise provided by law. . . . And, more specific to this case, the Revised Kansas Code for Care of Children generally confers originaljurisdiction on Kansas courts to hold proceedings concerning any child who may be a child in need of care.. . . But the [l]egislature placed limits on this jurisdiction, making it [s]ubject to the [UCCJEA] . . . .’’ (Citations omitted; internal quotation marks omitted.)); State ex rel. J.W. , 975 So. 2d 841, 845 (La. App. 2008) (‘‘[t]he UCCJA provides jurisdictional limitations that require a court that otherwise has subject matter jurisdiction to decline to exercise it’’); Hightower v. Myers , 304 S.W.3d 727, 733 (Mo. 2010) (‘‘This case is a civil case. Therefore, the trial court had constitutionally vested subject matter jurisdiction over the dispute. . . . The [C]ircuit [C]ourt’s statutory or [common-law] authorityto grant relief in a particular case differs from the [C]ircuit [C]ourt’s constitutionally granted subject matter and personal jurisdiction. . . . In this respect, the UCCJA jurisdiction provisions inform a court whetherit lacks authority to modify custody because of the statutory limitations. . . . [T]he UCCJA provisions at issue do not remove subject matter jurisdiction from the court.’’ (Citations omitted.)); DeLima v. Tsevi , 301 Neb. 933, 937, 921 N.W.2d 89 (2018) (‘‘We have previously said that subject matter jurisdiction over a child custodyproceeding is governed exclusively by the UCCJEA. . . . Our use of the word ‘exclusively’ in this context was slightly imprecise, because there are other statutes outside the UCCJEA that confer jurisdiction to decide child custody matters. . . . But while other statutes may confer jurisdiction generally, § 42-351 [of theRevised Statutes of Nebraska] directs courts to determine whether jurisdiction exists over a specific child custody proceeding under the UCCJEA.’’ (Citations omitted.)); Lustig v. Lustig , 560 N.W.2d 239, 242 (S.D. 1997) (‘‘Before a court may decide custody, it must possess jurisdiction. . . . Courts must also adhere to the jurisdictional requirements of the UCCJA and the prohibitions of the Parental Kidnapping Prevention Act . . . .’’ (Citation omitted.)); see also Ashburn v. Baker

, 256 Ga. 507, 509, 350 S.E.2d 437 (1986) (‘‘Although the [UCCJA] is the last expression of the legislature, it does not expressly repeal any particular provisions of the Civil Practice Act, nor the existing statutory provisions covering divorce, custody, alimony, and child support procedures. Finding this to be true, we will consider the requirements of the [UCCJA] in pari materia with the other applicable provisions of law pertinent thereto.’’ (Internal quotation marks omitted.)); 2 A. Haralambie, Handling Child Custody, Abuse and Adoption Cases (3d Ed. 2009) § 11:4, p. 215 (‘‘Most statutes provide that the court has jurisdiction if the child resides or is present or has property in the state. Because guardianship of the person affects the custody of children, the [UCCJEA] and the federal Parental Kidnapping Prevention Act . . . apply as limitations on the court’s jurisdiction.’’ (Footnotes omitted.)); W. Hogoboom et al., California Practice Guide: Family Law (2019) § 5:28.4, p. 5-14 (‘‘[e]ven if it otherwise has subject matter jurisdiction over the proceeding, a California court may have to yield to another state’s jurisdiction under the Federal Parental Kidnapping Prevention Act . . . and the [UCCJEA]’’ (citation omitted; emphasis omitted)); 7 J. Levin, Nichols Illinois Civil Practice (2015) § 123:168, p. 286 (‘‘[w]hile the UCCJEA may procedurally limit circumstances in which a circuit court may exercise its power to render a custody determination, it does not deprive a circuit court of its constitutionally derived jurisdiction to decide the matter in the first place’’); 10 (Pt. 1) A. Scheinkman, West’s McKinney’s Forms: Matrimonial and Family Law (2011) § 20:55, pp. 191–92 (‘‘[u]nder the [UCCJEA], a New York court which is otherwise competent to decide [child custody] mattershas jurisdiction to make an initial [child custody] determination only if one of four statutory tests is met’’).

The fact that the UCCJEA resolves competing claims of jurisdiction and does not itself create jurisdiction is most clearly manifested in its inconvenient forum provision, which allows a court having jurisdiction to decline to exercise jurisdiction in favor of another state’s court. See General Statutes § 46b-115k (a) (5);General Statutes § 46b-115p. Inconvenient forum is a doctrine that historically applies only when the matter could have been initiated in the more convenient forum in the first instance. See, e.g., American Dredging Co.

v. Miller, 510 U.S. 443, 447–48, 114 S. Ct. 981, 127 L. Ed. 2d 285 (1994) (doctrine of forum non conveniens applies ‘‘when an alternative forum has jurisdiction tohear [a] case’’ (internal quotation marks omitted)), quoting Piper Aircraft Co. v. Reyno , 454 U.S. 235, 241, 102 S. Ct. 252, 70 L. Ed. 2d 419 (1981); see also Brown v. Brown , supra, 195 Conn. 108 n.17 (‘‘[e]ven before theadoption of the UCCJA, the doctrine of forum non conveniens was recognized as applicable to child custodydisputes over which the court otherwise had jurisdiction; see, e.g., Clark v. Superior Court, 73 Cal. App. 3d 298, 309, 140 Cal. Rptr. 709 (1977) . . . Loonan v. Marino , 179 N.J. Super. 164, 168, 430 A.2d 975 (1981)’’). There is no evidence that the UCCJEA intended its inconvenient forum provision to operate differently. See Kedy v. A.W. Chesterton Co. , 946 A.2d 1171, 1182 (R.I. 2008) (inconvenient forum provision in UCCJEA ‘‘mends the fabric of the [common-law doctrine], rather than weakening it’’); see also Brown v. Brown , supra,107–108 (The UCCJA ‘‘contemplates that considerations that evolved under the traditional [common-law]doctrine of forum non conveniens . . . are not supplanted by the inconvenient forum provision of the UCCJA. . . . The [common-law] principle of forum non conveniens provides that a court may resist imposition upon its jurisdiction even when it has jurisdiction.’’(Citations omitted; emphasis in original; footnote omitted; internal quotation marks omitted.)).

To the contrary, the language in the UCCJEA reflects an intention to conform to the doctrine’s common-law operation. The UCCJEA says nothing about one state transferring its subject matter jurisdiction to, or conferring its jurisdiction upon, another state. 29 Instead, itallows a state having jurisdiction to ‘‘decline’’ to exercise its jurisdiction on the basis of its inconvenient forum determination. General Statutes § 46b-115q (a) and (d). If it so declines, it ‘‘shall stay’’ the proceeding ‘‘upon condition that a child custody proceeding be promptly commenced in another designated state . . . .’’ (Emphasis added.) General Statutes § 46b-115q (c). Jurisdiction cannot be transferred if it is retained during a stay. A proceeding cannot be commenced in a state that lacks jurisdiction. Perhaps the most obvious indication that the more appropriate forum must have subject matter jurisdiction when that determination is made is that the UCCJEA designates ‘‘any agreementof the parties as to which state should assume jurisdiction’’ as a relevant factor in deciding whether anotherstate would be a more convenient forum. General Statutes § 46b-115q (b) (5). It is black letter law that courts do not obtain subject matter jurisdiction by consent or agreement of the parties. See, e.g., Angersola v. Radio-logic Associates of Middletown, P.C. , 330 Conn. 251, 272, 193 A.3d 520 (2018); Hayes v. Beresford, 184 Conn. 558, 562, 440 A.2d 224 (1981).

In fact, although the commentary to the UCCJEA specifically characterizes the jurisdiction provisions as relating to ‘‘subject matter jurisdiction’’; see Unif. Child Custody Jurisdiction and Enforcement Act (1997) § 201, comment (2), supra, 9 U.L.A. (Pt. IA) 506; some courtsand commentators have taken issue with that characterization and instead view them as prescribing conditions for exercising personal jurisdiction. See, e.g., Williams

v. Williams , supra, 555 N.E.2d 145 (referring to UCCJA); Harris v. Young , 473 N.W.2d 141, 143 (S.D. 1991) (same); B. Atwood, ‘‘Child Custody Jurisdiction and Territoriality,’’ 52 Ohio St. L.J. 369, 375 and n.36 (1991) (citing disagreement among commentators and among courts); see also 750 Ill. Comp. Stat. Ann. 60/208 (West 2019) (referring to UCCJEA as prescribing personal jurisdiction); Friedman v. Eighth Judicial District Court ex rel. Clark , 127 Nev. 842, 848 n.5, 264 P.3d 1161 (2011) (noting that it would have been more appropriate for UCCJEA to refer to ‘‘exclusive venue’’ instead of‘‘subject matter jurisdiction’’ but using latter for consistency (internal quotation marks omitted)), quoting In re Custody of A.C. , supra, 165 Wn. 2d 573 n.3. This view is lent some support by a statement in the commentary to the UCCJA, the UCCJEA’s predecessor, explainingthat, under the significant connection ground for jurisdiction, ‘‘[t]here must be maximum rather than minimum contact with the state’’; Unif. Child Custody Jurisdiction Act (1968) § 3, comment, supra, 9 U.L.A. (Pt. IA) 108; suggesting that the UCCJA’s standards exceed the due process requirements for personal jurisdiction prescribed by the United States Supreme Court. See,
e.g., International Shoe Co. v. Washington, 326 U.S. 310, 316, 66 S. Ct. 154, 90 L. Ed. 95 (1945) (prescribing minimum contacts standard).

Irrespective of whether we characterize the conditions under the UCCJEA as personal jurisdiction or jurisdictional facts necessary to the exercise of subject matter jurisdiction, the effect is the same in the present case. Because the UCCJEA does not confer subject matter jurisdiction on our courts but instead determines whether our courts may exercise existing jurisdiction or must defer to another state’s jurisdiction, it providesno impediment to statutes, like § 46b-121, that determine the scope of jurisdiction. 30

Giving effect to § 46b-121 does not ‘‘ ‘nullify’ ’’ anyprovision of the UCCJEA, as the concurring and dissenting justice suggests. See State v. Victor O. , 320 Conn. 239, 250, 128 A.3d 940 (2016) (‘‘we must read
statutes to avoid conflict that would result in a nullification of one by the other’’ (internal quotation marks omitted)). The UCCJEA’s operation is unimpeded in almost every case within its purview. Our interpretationsimply precludes that act’s application in a discrete and rarely arising circumstance that undoubtedly was not contemplated when the act was drafted. If this result is not what our legislature intended, it is free to repeal§ 46b-121 or expressly designate that its territorial limitation is inapplicable when Connecticut otherwise meets the jurisdictional requirements of the UCCJEA.

Nor can we say that it was irrational for the legislatureto have maintained this requirement. Neglect proceedings are materially different from traditional custody disputes between parents, in substance and procedure. A state child protection agency or its commissioner is the opposing party in a neglect proceeding. That proceeding typically does not end with a determination of custody in favor of one party or the other. It often results in substantial conditions being imposed on the parents in order to regain custody. It also may establish the predicate for termination of parental rights. It makes eminent sense for the child, personally or through her parent, to have a present connection with the state if an agency of that state is going to oversee the provision, and evaluate the success, of the services necessary to achieve family reunification. 31

Nonetheless, the commissioner contends that givingeffect to the territorial limitation will impede the operation of the UCCJEA, which our legislature could not have intended. She points to the following hypotheticalto illustrate this point: Florida lacks home state or significant connection jurisdiction, but Connecticut has significant connection jurisdiction under the UCCJEA. The commissioner argues that, if we were to concludethat the territorial limitation applicable to neglect proceedings prevents Connecticut from exercising jurisdiction, no state would have jurisdiction over the matter. She points out that the UCCJEA permits a state to exercise default jurisdiction only when no other state has jurisdiction under one of the designated grounds. See General Statutes § 46b-115k (a) (6).

We disagree with the commissioner’s concern for a couple of reasons. First, if the territorial limitations under § 46b-121 are not met, Connecticut would not have significant connection jurisdiction. We have found no case in which significant connection jurisdiction was found to exist in a case of predictive neglect in the absence of evidence that at least one parent maintained his or her domicile in the state exercising jurisdiction. 32
That fact would be a sufficient basis for the child to be deemed neglected within this state under a theory of predictive neglect. Second, even if the present factswere sufficient to support Connecticut’s significant connection jurisdiction, Florida would be permitted to exercise jurisdiction under the UCCJEA’s temporary emergency jurisdiction provision, General Statutes § 46b-115n. Under that provision, Florida’s order would remain in effect until the court of another state havingjurisdiction issues a custody order. See General Statutes§ 46b-115n (b) and (c). Because Connecticut lacks jurisdiction to do so, Florida would be free to issue orders that are more permanent.

The allegations in the present case do not satisfy thejurisdictional predicate of the juvenile matters provision. See General Statutes § 46b-121 (a) (1). There is no allegation from which we reasonably could infer that Teagan likely would be neglected within this state. She is present in this state only because of another state’s action to remove her from her parents’ state of residence. Jurisdiction to make an original custody determination rests with the state of Florida. 33

The denial of the father’s motion to dismiss is
reversed and the case is remanded with direction to grant the motion.

In this opinion D’AURIA, KAHN and ECKER, Js., concurred.
* In accordance with the spirit and intent of General Statutes § 46b-142 (b) and Practice Book § 79a-12, the names of the parties involved in this appeal are not disclosed. The records and papers of this case shall be open for inspection only to persons having a proper interest therein and upon order of the Supreme Court. ** The listing of justices reflects their seniority status on this court as of the date of oral argument. *** June 24, 2020, the date that this decision was released as a slip opinion, is the operative date for all substantive and procedural purposes.

1 ‘‘The doctrine of predictive neglect is grounded in the state’s responsibility to avoid harm to the well-being of a child, not to repair it after a tragedy has occurred.’’ (Internal quotation marks omitted.) In re Joseph W. , 305 Conn. 633, 644, 46 A.3d 59 (2012). To establish predictive neglect, ‘‘the trial court must find that it is more likely than not that, if the child remained in the current situation, the child would be ‘denied proper care and attention, physically, educationally, emotionally or morally’; General Statutes (Rev. to 2011) § 46b-120 (8) (B); or would be ‘permitted to live under conditions, circumstances or associations injurious to the well-being of the child . . . .’ General Statutes (Rev. to 2011) § 46b-120 (8) (C) . . . .’’ (Citation omitted.) In re Joseph W

., supra, 646. ‘‘If the parents have indicated that they intend to care for the child jointly . . . the trial court may treat the parents as a single unit in determining whether the petitioner has met [his or her] burden of proving predictive neglect.’’ Id., 647–48.

2 For convenience, in this opinion we cite Connecticut’s version of the UCCJEA and denote those few provisions in which Florida’s version has any material difference.

3 The record before this court does not include many of the filings from the Florida proceedings. The facts on which we rely are those found by the trial court in either Florida or Connecticut, or those alleged in pleadings filed by the Florida Department of Children and Families or the Connecticut commissioner, which have not been challenged by the respondents.

4 According to its brief filed in the First District Court of Appeal forFlorida, the Florida department took this action after learning of the respondents’ past history, that they had left Connecticut to avoid the Connecticut department’s involvement with Teagan, and that they had offered to pay a relative to transport them out of Florida when they realized that the Florida department was going to be involved with Teagan. It is unclear from the record whether it was the Florida department or the Connecticut department that first initiated communication with its counterpart. Nor is it clear whether conduct by the mother prompted an investigation, which, in turn, led the two agencies to communicate.

5 Because the merits of the pending neglect petition for Teagan are notan issue before us, we do not recount in detail the commissioner’s allegations. To convey the gravity of the concerns that led to the filing of the present petition, it suffices to note that, in addition to allegations about the long-standing mental health issues of the respondents, particularly themother, that raised concerns about violence in the home and their parenting abilities, the commissioner alleged in Teagan’s neglect petition that the mother had suffered from postpartum depression following the birth of her two older children, A and G. This condition caused the mother to have thoughts of harming herself and her child, and she admitted to trying tosmother A and to having thoughts of throwing G in the fireplace. We underscore that our conclusion as to jurisdiction is not intended to call into question the propriety of the Connecticut department’s efforts to convey the gravity of these concerns to the Florida department.

6 At the hearing on the motion, the magistrate stated: ‘‘[A]fter I received the motion [to transfer jurisdiction], I did make contact with Judge Driscoll of the [Connecticut trial court]. I did not talk to Judge Driscoll directly. We exchanged messages, and the message I received in return was that his court would accept and wanted transfer of jurisdiction, and that there are court dates coming up within the next few weeks in the case in Connecticut, and this case would be added if transferred. And Children’s Legal Services conferred with their counterparts in Connecticut, according to the motion, and they are willing and, in fact, wanting to accept Teagan into their case.’’

7 At the hearing before the magistrate, the father’s counsel represented that the father had begun full-time employment at a Hampton Inn in Florida one week before the hearing. The mother’s counsel also represented that the mother recently had begun counseling sessions and identified the provider.

8 The father also sought dismissal on the ground of a lack of personal jurisdiction, a claim that the court summarily disposed of as follows: ‘‘[The father’s] contention that he was not served ‘in Connecticut’ and therefore [that] the proceedings are invalid misstates the law of Connecticut, the law of Florida, and the [UCCJEA].’’ The father does not renew his personal jurisdiction claim on appeal.

9 In her brief to this court, the commissioner concedes that unclean hands would not have been a proper basis to deny the father’s motion to dismiss because he was not seeking equitable relief but argues that the court’s decision did not rest on this basis. We need not reach this issue in light of our conclusion that dismissal was compelled for other reasons.

10 The father contends that the decision denying his motion to dismiss is immediately appealable because litigating custody in a distant jurisdiction will impair his ability to participate in the litigation, to call witnesses in his defense, to engage in services to facilitate reunification, and to visit with Teagan. The commissioner contends that no evidence was presented to support these claims of irreparable harm and that the mere fact that a parent must litigate a case in another state does not necessarily mean the parent has been irreparably harmed. The commissioner nonetheless agrees that the father can immediately appeal because doing so would be the only way in which he could potentially be afforded the relief he was originally seeking—avoiding litigation in Connecticut. In light of our agreement with one of the father’s arguments, we need not consider the other arguments.

11 The same policy concerns that inform our approach to interlocutory appeals from trial court decisions in family matters are implicated in such appeals from trial court decisions in juvenile matters. See generally General Statutes § 46b-1 (defining Superior Court’s jurisdiction over family relations matters to include juvenile matters).

12 The trial court deferred ruling on the father’s motion for visitation until the jurisdictional issue was resolved but noted that visitation could be worked out with the Connecticut department on a voluntary basis in the interim. The petition to terminate the respondents’ parental rights filed in January, 2019, after the ruling on the motion to dismiss was issued, states that, since Teagan was brought to Connecticut, the father has not had a supervised visit with her ‘‘due to [his] residing in Florida.’’ The petition does not indicate whether the department ever offered to provide supervised visitation at its expense. It does indicate that the father had failed to engage in any contact with the department since September, 2018, approximately

one month before his motion to dismiss was denied.

13 Although nothing in the record before this court indicates whether the respondents made an argument to the Florida court that transfer would adversely impact visitation, we do not view that omission to preclude thefather from raising that concern in connection with his final judgment argument in this court. Insofar as the commissioner contends, in connection with the final judgment issue, that the father presented no evidence regarding the impact of the trial court’s jurisdiction on visitation, we are hard-pressed to see how or when he could have presented such evidence.

14 It appears that, under various rules that govern interlocutory appealsin other jurisdictions, most jurisdictions permit an immediate appeal from a decision determining that subject matter jurisdiction exists under the
UCCJEA. See In re Marriage of Lamaria, Docket No. B237111, 2013 WL 1402278, *3 (Cal. App. April 8, 2013) (rejecting claim that jurisdictional determination under UCCJEA is not appealable interlocutory order); Cohen

v. Cohen , 300 Ga. App. 7, 8, 684 S.E.2d 94 (2009) (denial of motion to dismiss for lack of jurisdiction under UCCJEA was immediately appealable because decision involves child custody order, which is immediately appealable by statute); In re Welfare of Child of G.R. , Docket No. A17-0995, 2017 WL 5661606, *1 (Minn. App. November 27, 2017) (considering interlocutory appeal from trial court’s decision denying motion to dismiss for lack of subject matter jurisdiction under UCCJEA); South Carolina Dept. of Social
Services v. Johnnie B. , Docket No. 2014-UP-080, 2014 WL 2579937, *1 (S.C. App. February 21, 2014) (concluding that interlocutory appeal challengingsubject matter jurisdiction under UCCJEA should be permitted ‘‘in the interest of justice and judicial economy’’); Sackett v. Roseman, Docket No. M2002- 00587-COA-R9-CV, 2003 WL 22349077, *2 (Tenn. App. July 2, 2003) (trial court granted father’s motion for summary judgment, finding that it hadjurisdiction under UCCJEA and granting mother permission to seek interlocutory appeal from that judgment). But see Duffy v. Reeves , 619 A.2d 1094, 1098 n.1 (R.I. 1993) (concluding that permitting interlocutory appeal fromtrial court’s assumption of jurisdiction under emergency jurisdiction provision of UCCJA can cause more harm to child than if appeal was delayed until determination of merits, that court would decline to review these interlocutory appeals in absence of extraordinary circumstances in future, and that petition for certiorari should be filed in such cases); see also Fitzgerald v. Bilodeau , 908 A.2d 1212, 1213 and n.2 (Me. 2006) (denial of
motion to dismiss for forum non conveniens under UCCJEA is not immediately appealable in absence of extraordinary circumstances, i.e., narrow exceptions to final judgment rule, such as judicial economy, collateral order, and ‘‘ ‘death knell’ ’’ exceptions).

15 The parties agree that the Florida court did not cite any particular provision of the UCCJEA as a basis for its decision that jurisdiction should be transferred to Connecticut as the more convenient forum, but their briefs to this court assume that the Florida court either did exercise, or could have exercised, jurisdiction under a particular provision of that act. Althoughwe are inclined to agree, the record provides a basis to question that assumption. The Florida department took the position in its appellate brief that Florida had only limited, temporary, emergency jurisdiction because of evidence that the respondents were making plans to leave the state with Teagan to avoid her being taken into that state’s custody, which deprived the Florida court of jurisdiction on a more permanent basis under the UCCJEA. Moreover, although the father claimed in his brief that there was a bar to Connecticut’s jurisdiction because Teagan would never be neglected in this state, he did not identify any statute imposing such a requirement. Given these concerns, after oral argument, we ordered the parties to file supplemental briefs to address whether any ground for making an initial custody determination under the UCCJEA supported Connecticut’s exercise of jurisdiction, and, if so, whether General Statutes § 46b-121, which restricts the exercise of jurisdiction in neglect proceedings, nonetheless barred the exercise of jurisdiction.

16 Although § 46b-121 was the subject of amendments in 2018; see Public Acts 2018, No. 18-31, § 27; those amendments have no bearing on the merits of this appeal. In the interest of simplicity, we refer to the current revision

of the statute.

17 The UCCJEA defines ‘‘home state’’ as ‘‘the state in which a child lived with a parent or person acting as a parent for at least six consecutive months immediately before the commencement of a child custody proceeding. In the case of a child less than six months old, the term means the state in which the child lived from birth with any such parent or person acting as a parent.’’ General Statutes § 46b-115a (7). ‘‘[C]ases in other states have concluded [that] time spent in a forum after the filing of a child custody petition may not be counted [toward] the time necessary for home state jurisdiction.’’ In re Marriage of Sareen, 153 Cal. App. 4th 371, 379, 62 Cal. Rptr. 3d 687 (2007), cert. denied sub nom. Sareen v. Sareen, 552 U.S. 1259,128 S. Ct. 1670, 170 L. Ed. 2d 357 (2008). But see General Statutes § 46b115n (b) (temporary emergency jurisdiction may become basis for final custody order if, among other things, state has ‘‘become’’ child’s home state).

18 The decisions of both the Florida court and our trial court imply that the respondents engaged in unjustifiable conduct by leaving Connecticutfor the purpose of avoiding the Connecticut department’s involvement with Teagan. It is unclear, however, whether General Statutes § 46b-115r would apply under the present circumstances. That statute applies when the person engaging in such misconduct seeks to ‘‘invoke [the court’s] jurisdiction’’; General Statutes § 46b-115r (a); and the respondents clearly were not trying to invoke any court’s jurisdiction.

19 The counterpart to this provision in Florida’s UCCJEA is structured differently from ours but is the same substantively in all material respects. See Fla. Stat. Ann. § 61.514 (West 2012).

20 The commentary to the UCCJA, the UCCJEA’s predecessor, more clearly explained the rationale for this rule: ‘‘There is no requirement for technical personal jurisdiction, on the traditional theory that custody determinations,as distinguished from support actions . . . are proceedings in rem or proceedings affecting status.’’ Unif. Child Custody Jurisdiction Act (1968) § 12,comment, 9 U.L.A. (Pt. IA) 372 (2019). The Restatement (Second) of Judgments explains that custody is treated as a matter of status (i.e., a determination of the relationship between parties, like divorce) and that, if status determinations could be made only with respect to individuals present in the state, ‘‘it would have been impossible to determine family relationshipsin which one party to the relationship was not personally present, for example when a local resident sought a divorce from a spouse who had moved elsewhere. Conceiving the status as a thing overcame this difficulty. The status could be attributed a situs where a party to the relationship had some significant connection, such as residence, and jurisdiction accordingly exercised on the basis of situs of the status.’’ 1 Restatement (Second), Judgments § 7, comment (b), p. 81 (1982); see also Perry v. Ponder, 604 S.W.2d 306, 316 (Tex. Civ. App. 1980) (‘‘if ‘minimum contacts’ were required, cases would arise in which no court would have personal jurisdiction over both parents’’).

21 Courts have held that all relevant factors must be considered in strict compliance with the inconvenient forum provision. See In re McAndrews

, 171 N.H. 214, 220, 193 A.3d 834 (2018) (citing cases). There is no indicationthat the Florida court considered two manifestly relevant enumerated factors—the distance between Florida and Connecticut and the parties’ relative financial circumstances. See General Statutes § 46b-115q (b) (3) and (4). Although the respondents did not make specific arguments on these factors, the father submitted a pay stub reflecting an hourly wage of less than $10 an hour, which suggests that the respondents’ financial resources pale in comparison to the resources of a state child protection agency. In additionto its failure to consider relevant enumerated factors, which are not exclusive, the Florida court’s decision reflects no consideration of legitimateconcerns that the father has raised in this court about the impact of Connecticut’s exercise of jurisdiction on visitation and on the provision of services to rehabilitate the respondents and reunify the family. Despite the fact that neither respondent raised those issues in the trial court, their significance should have been recognized by the court on its own initiative. Review of the propriety of the Florida court’s inconvenient forum determination, however, and the effect of the respondents’ failure to timely raise relevant considerations are matters exclusively within the province of the Florida

courts. We note that our trial court communicated Connecticut’s willingness to assume jurisdiction, via a telephone message. Insofar as our trial courtrepresented that Teagan’s case would be added to the pending case pertaining to her sibling if her case was transferred, we observe that no suchdecision could be rendered without first giving the respondents an opportunity to object to the consolidation. See Practice Book § 35a-6A (requiring court to consider whether consolidation would cause injustice). Had the courts engaged in a communication on the record, as the UCCJEA demands; see General Statutes § 46b-115h; the aforementioned issues might have been explored in a more meaningful way. See Fla. Stat. Ann. § 61.511 (West 2012) (requiring, in addition to verbatim record of communication, that ‘‘[t]he court shall allow the parties to participate in the communication,’’ at which time ‘‘they must be given the opportunity to present facts and legal arguments before a decision on jurisdiction is made’’).

22 ‘‘The term territorial jurisdiction . . . refers to the connection between the territorial authority of the court and the action that has been brought before the court. 1 Restatement (Second), Judgments [c. 2], introductory note, p. 22 [1982].’’ (Internal quotation marks omitted.) Trichilo v. Trichilo

, 190 Conn. 774, 779–80 n.7, 462 A.2d 1048 (1983). It reflects the concept that, because governments have an authority that generally is defined by referenceto their legal boundaries or territorial limits, the courts constituted by them have an authority that is correspondingly defined in territorial terms. See 1 Restatement (Second), supra, § 4, comment (a), p. 56; see also General Statutes § 51-1a (b) (‘‘[t]he territorial jurisdiction of the Supreme Court, the Appellate Court, and the Superior Court shall be coextensive with the boundaries of the state’’). ‘‘Hence, outside the territorial limits of a court’s jurisdiction, the coercive effectiveness of its judgment depends upon the judgment’s being given recognition by the authorities of another government, under a principle of comity or by virtue of legal provisions such as the [f]ull [f]aith and [c]redit [c]lause of the [United States] [c]onstitution.’’ 1 Restatement (Second), supra, c. 2, introductory note, p. 23. Although the concurring and dissenting justice places significant weight on the characterization of § 46b-121 as a reflection of territorial jurisdiction, the distinction between territorial jurisdiction and subject matter jurisdiction is not always clear; territorial jurisdiction has been viewed as combining aspects of subject matter jurisdiction with personal jurisdiction. See id., introductory note, p. 28 (‘‘Whatever term is used [to refer to subject matter jurisdiction], the concept of authority to decide a particular type of legal controversy is sometimes difficult or impossible to distinguish from that of territorial jurisdiction. For example, when reference is made to a court’sauthority to determine a matter of status or to determine interests in property, it can be said that the state’s connection to the status or the property is a matter of territorial jurisdiction or that it is one of subject matter jurisdiction.’’); see also, e.g., B.J.P. v. R.W.P. , 637 A.2d 74, 80–81 (D.C. 1994) (Ferren, J., concurring) (‘‘There are two species of jurisdiction over thesubject matter. The first—the one commonly meant when referring to ‘subject matter jurisdiction’—concerns the ‘competence’ of the court to adjudicate a particular kind of controversy; e.g., divorce or child custody. . . . The second species is called ‘territorial jurisdiction,’ which requires the court to have a geographical relationship to a particular ‘thing’ or ‘status’ . . . in addition to the competence to adjudicate the type of claim at issue;e.g., jurisdiction over custody where the child is domiciled. Territorial jurisdiction often combines aspects of classic subject matter jurisdiction (e.g., a status such as child custody) with those of in personam jurisdiction (e.g., a particular parent’s custody of a particular child).’’ (Citations omitted; footnote omitted.)); Feriole v. Feriole , 468 So. 2d 1090, 1091 (Fla. App. 1985) (‘‘Whenever a minor child resides in the state, a circuit court has inherent jurisdiction to entertain matters pertaining to custody and [issue] any orders appropriate to that child’s welfare. . . . For many years it was the law of this state that a court had no jurisdiction to initially adjudicate the question of the custody of a minor child unless that child was physically present within the territorial jurisdiction of the court at the time the [action] seeking an adjudication of his custody was filed.’’ (Citation omitted.)). The only material consequence flowing from characterizing a conditionas an expression of territorial jurisdiction, rather than subject matter jurisdiction, is the possibility of the former being subject to waive r. See 1 Restatement (Second), supra, c. 2, introductory note, p. 28. But see State

v. Dudley, 364 S.C. 578, 582, 614 S.E.2d 623 (2005) (‘‘Although territorial jurisdiction is not a component of subject matter jurisdiction, we hold that it is a fundamental issue that may be raised by a party or by a court at any point in the proceeding. . . . The exercise of extraterritorial jurisdiction implicates the state’s sovereignty, a question so elemental that we hold it cannot be waived by conduct or by consent.’’ (Citation omitted; footnote omitted.)). Waiver is not a concern in the present case, however, because the father has consistently objected to Connecticut’s exercise of jurisdiction over the case due to Teagan’s lack of presence in this state.

23 This broad construction is consistent with the historical treatment of territorial jurisdiction and custody jurisdiction. See 1 Restatement (Second), Conflict of Laws § 79, p. 237 (1971) (Custody of the Person); 1 Restatement(Second), Judgments § 4, p. 55 (1982) (Constitutional and Legislative Determinants of Territorial Jurisdiction); 1 Restatement (Second), Judgments § 7, p. 79 (1982) (Jurisdiction over Status); see also Castle v. Castle , 247 So. 2d 455, 456 (Fla. App. 1971) (Walden, J., dissenting) (‘‘[T]wenty-seven states . . . are unanimous in holding that even though children may be physically without the state, power exists in the court to make an award of custody of children domiciled within the state. See [C. Drechsler, Annot., ‘Jurisdiction of Court to Award Custody of Child Domiciled in State but Physically Outside It,’ 9 A.L.R.2d 434, 442, § 5 (1950)].’’); In re Gonzales , 25 Ill. App. 3d 136, 143, 323 N.E.2d 42 (1974) (‘‘The [s]tate’s interest in this particular case in which the parent is a nonresident is established in that the [s]tate, as [p]arenspatriae, has a responsibility to care for and protect any child within itsborders. . . . Consequently, the legal residence of the child does not technically affect the jurisdiction of the court, so long as the child is physically present within the [s]tate.’’ (Citation omitted.)).

24 See, e.g., Ark. Code Ann. § 9-27-306 (a) (1) (2015) (‘‘[t]he circuit court shall have exclusive original jurisdiction of and shall be the sole court for the following proceedings governed by this subchapter, including withoutlimitation . . . (B) Proceedings in which a juvenile is alleged to be dependent or dependent-neglected’’); Colo. Rev. Stat. § 19-1-104 (1) (2019) (‘‘the juvenile court has exclusive original jurisdiction in proceedings . . . (b) Concerning any child who is neglected or dependent, as set forth in section 19-3-102’’).

25 The concurring and dissenting justice discounts this North Carolina case because the termination statute provided that state’s District Court
with ‘‘ exclusive original jurisdiction’’ over the termination matter. (Emphasis added; internal quotation marks omitted.) In re Leonard, supra, 77 N.C. App. 440. This exclusivity language is commonly used, however, to designate which of North Carolina’s courts, i.e., District Court or Superior Court, has jurisdiction, not to designate which state’s court has jurisdiction. See, e.g., N.C. Gen. Stat. §§ 7A-241 and 7A-272 (2019).

26 Conditions for exercising exclusive, continuing jurisdiction under the UCCJEA are codified in General Statutes §§ 46b-115l and 46b-115m.

27 The commissioner views this New Hampshire case as supporting her position, reading it as standing for the proposition that the UCCJEA has an independent sphere of operation, such that it applies when more than one state has a claim to jurisdiction. We do not think this is a fair reading of the case. Nowhere is this more evident than the New Hampshire court’s reliance on the reasoning of the North Carolina court in In re H.L.A.D

., supra, 184 N.C. App. 381.

28 The UCCJEA, like its predecessor, is aimed at achieving the following purposes: ‘‘(1) Avoid jurisdictional competition and conflict with courts of other [s]tates in matters of child custody which have in the past resulted in the shifting of children from [s]tate to [s]tate with harmful effects on their well-being; ‘‘(2) Promote cooperation with the courts of other [s]tates to the end that a custody decree is rendered in that [s]tate which can best decide the case in the interest of the child;‘‘(3) Discourage the use of the interstate system for continuing controversies over child custody; ‘‘(4) Deter abductions of children; ‘‘(5) Avoid relitigation of custody decisions of other [s]t ates in this [s]tate; [and] ‘‘(6) Facilitate the enforcement of custody decrees of other [s]tates . . . .’’Unif. Child Custody Jurisdiction and Enforcement Act (1997) § 101, comment, supra, 9 U.L.A. (Pt. IA) 474. Conflicting custody orders and the enforcement of orders had been a problem in part because there was some question as to whether custody orders fell outside the purview of the full faith and credit clause of the United States constitution. See 1 Restatement (Second), Conflict of Laws § 79, comment (c) and reporter’s note to comment (c), pp. 238–39, 241–42 (1971). Noncustodial parents had been using the child toforum shop for a more favorable custody arrangement, as the child’s presence was deemed a basis for a court’s jurisdiction. See, e.g., Bellew v. Larese

, 288 Ga. 495, 499, 706 S.E.2d 78 (2011); In re Felty v. Felty, 66 App. Div. 3d 64, 71–72, 882 N.Y.S.2d 504 (2009); see also P. Hoff, supra, p. 2.

29 Nor does the transfer rule that the Florida court cited as authority forits decision. Rule 8.205 (c) of the Florida Rules of Juvenile Procedure provides: ‘‘If it should appear at any time that an action is pending in another

state , the court may transfer jurisdiction over the action to a more convenient forum state, may stay the proceedings, or may dismiss the action.’’ (Emphasis added.) This language plainly reflects that the more convenient forum state already had jurisdiction over the action prior to the transfer. The record suggests that the Florida court viewed the case pending in Connecticut regarding Teagan’s sibling, J, and Teagan’s case to be part of the same‘‘action,’’ in reliance on a telephone message it had received from the Connecticut trial court that Teagan’s case would be added to J’s case if the Florida court declined to exercise jurisdiction.

30 A different type of territorial limitation commonly operates in the proceeding at which most initial child custody determinations are made. In a marriage dissolution action, in which an initial custody determination most commonly is made; see General Statutes § 46b-115q (d) (allowing court todecline to exercise jurisdiction over initial custody determination incidental to dissolution action while retaining jurisdiction over dissolution); it has long been the law in nearly every state, including Connecticut, that the party filing for dissolution must reside in the state in which the action is filed. See, e.g., Rose v. Rose , 96 Mass. App. 557, 561–62, 136 N.E.3d 408 (2019)(‘‘Nearly every [s]tate . . . imposes a statutory durational residency requirement to ensure ‘that those who seek a divorce from its courts [are] genuinelyattached to the [s]tate,’ and ‘to insulate [its] divorce decrees from the likelihood of collateral attack.’ Sosna v. Iowa, 419 U.S. 393, 404–405, 409, 95 S. Ct. 553, 42 L. Ed. 2d 532 (1975).’’); see also, e.g., General Statutes § 46b-44 (residency requirement).

31 That such a connection is required is consistent with the historical treatment of custody jurisdiction and the UCCJEA’s disclaimer that neither the physical presence of, nor personal jurisdiction over, the child or ‘‘a party’’ is necessary. See General Statutes § 46b-115k (c). For many years prior to the enactment of the UCCJA, the rule was that ‘‘[a] state has power to exercise judicial jurisdiction to determine the custody . . . of the person of a child . . . (a) who is domiciled in the state [a fact dictated by a parent’s domicile], or (b) who is present in the state, or (c) who is neither domiciled nor present in the state, if the controversy is between two or more persons who are personally subject to the jurisdiction of the state.’’ 1 Restatement (Second), Conflict of Laws § 79, p. 237 (1971). The first ground was based on the theory that custody is a determination of status; see id., comment (a), p. 237; which is the theory cited in the commentary to the UCCJA as the rationale for the disclaimer regarding physical presence and personal jurisdiction. See footnote 20 of this opinion. Under this status theory, each state has jurisdiction to ‘‘determine the civil status and capacities of all its inhabitants,’’ and even if an involved nonresident party could not be served within the state, the decree would be binding within the state in which it

was rendered. Pennoyer v. Neff , 95 U.S. 714, 734–35, 24 L. Ed. 565 (1878), overruled in part on other grounds by Shaffer v. Heitner, 433 U.S. 186, 97 S. Ct. 2569, 53 L. Ed. 2d 683 (1977); see also In re Termination of Parental Rights to Thomas J.R. , 262 Wis. 2d 217, 236, 663 N.W.2d 734 (2003) (‘‘child custody proceedings determine the ‘status’ of children . . . [and thereby] implicate ‘the right and obligation of the state in its parens patriae role to consider the welfare of the child subject to its jurisdiction and to make a determination that is in the best interests of the child’ ’’). Thus, the status theory is predicated on the presence of the child or a parent, but not both parents. See In re R.W. , supra, 191 Vt. 125–29 (applying UCCJEA and citing status cases from other jurisdictions in support of conclusion that Vermont had jurisdiction to terminate father’s parental rights, even though father lacked minimum contacts with Vermont, because court had jurisdiction to adjudicate custody ‘‘status’’ of his children, who, along with their mother, were within court’s jurisdiction).

32 See H.T. v. Cleburne County Dept. of Human Resources , 163 So. 3d 1054, 1066–67 (Ala. Civ. App. 2014) (Alabama had significant connection jurisdiction over termination petition pertaining to infant born in Georgia, even though mother had been living in Georgia immediately before child’s birth, because mother repeatedly used Alabama address as her residence on official forms and insisted to Department of Human Resources that she intended to live at that address with infant after leaving hospital); In re

Iliana M. , 134 Conn. App. 382, 391–93, 38 A.3d 130 (2012) (Connecticut had significant connection jurisdiction over neglect petition relating to infant born in Massachusetts hospital because trial court did not credit parents’ representations that they intended to live in Massachusetts given that they were longtime residents of Connecticut, they had listed Connecticut as their residence on hospital forms, and court filings and recent police reports listed Connecticut as their residence); In re J.S. , 131 N.E.3d 1263, 1264–65, 1271 (Ill. App. 2019) (Illinois had significant connection jurisdiction over neglect petition relating to infant born in Indiana hospital because mother claimed that she was planning move to Arizona and her hospital record noted that mother ‘‘has Illinois Medicaid, Illinois food stamps, and Illinois[Women, Infants and Children benefits]’’ (internal quotation marks omitted)); In re Arnold, 532 S.W.3d 712, 718 (Mo. App. 2017) (Missouri had significant connection jurisdiction over neglect petition pertaining to infant born in Kansas because parents lived in Missouri during time relevant tocases pertaining to infant’s siblings, parents’ last known address is in Missouri, and parents declined to provide court with Kansas address despite claiming that they presently lived in that state); State ex rel. R.P. v. Rosen

, supra, 966 S.W.2d 301 (Missouri had significant connection jurisdiction overneglect petition relating to infant born in Kansas hospital because parents had been living in Missouri for considerable period of time prior to child’s birth, they indicated to social worker at Kansas hospital that they intended to return to Missouri with baby, and Missouri Medicaid paid for expenses associated with infant’s birth); State ex rel. W.D. v. Drake , 770 P.2d 1011, 1012–13 (Utah App.) (California had significant connection jurisdiction over neglect petition relating to infant born in Utah because parents were longtime California residents, father stayed behind in California while mother looked for state with more favorable custody law, and mother took few belongings and did not establish permanent residence), cert. denied sub nom. In re

W.D. , 789 P.2d 33 (Utah 1989); In re M.S. , 205 Vt. 429, 439–41, 176 A.3d 1124 (2017) (Vermont had significant connection jurisdiction over neglect petition relating to infant born in New Hampshire because parents lived for extended period in Vermont and occasionally lived in New Hampshire but did not establish their own residence in New Hampshire); In re D.T. , 170 Vt. 148,150, 153, 743 A.2d 1077 (1999) (Vermont had significant connection jurisdiction over neglect petition relating to infant born in Massachusetts because child was taken to Vermont when he was two months old and parents stipulated that they intended to remain in Vermont). Despite the absence of this factor in the present case, the concurring and dissenting justice nonetheless concludes that Connecticut has significant connection jurisdiction. It reads the case law as indicating that ‘‘proof of the following factors will support a conclusion that an infant has a significant connection to a forum state as a result of parental conduct: (1) history of long-term residency in that state by a parent; (2) the ongoing presence of the child’s siblings in the state, especially if they are in the state’s legal custody; (3) the presence of other relatives in the state; or (4) a state’s provision of child welfare or other social services to the family.’’ We disagree that the case law supports the concurring and dissenting justice’s conclusion. With regard to the long-term residency of a parent in the state, if such residency has been relinquished at the time jurisdiction is invoked, the past residency could establish the parent’s connection to the state, but it would

not establish the connection of a child who has never been and will never be in the state. The statute unambiguously requires that ‘‘the child and at least one parent or person acting as a parent have a significant connection with this state . . . .’’ (Emphasis added.) General Statutes § 46b-115k (a) (3) and (4). With regard to the presence of the child’s relatives in the state, we are unaware of any case in which this factor was cited without evidencedemonstrating that the child voluntarily had maintained, or would be maintaining, a relationship with those relatives. With regard to the state’s provision of services or benefits, the cases cited previously in this footnote suggest that there was a present entitlement to the services or benefits, or at least that such services or benefits had been received shortly before the child’s birth and had not yet been terminated. It is reasonable to presume that a parent presently entitled to such services or benefits has not relinquished residency in the state. That is not the case here. Finally, with regard to the ongoing presence of the child’s siblings in the state, especially if they are in the state’s legal custody, we are unaware of any case in which this factor alone was sufficient to establish a significant connection between the child and the state, especially when there is no evidence that the child has been or will be present in the state.

33 Our conclusion that the trial court lacks jurisdiction over the commissioner’s neglect petition has no effect on the order granting the commissioner temporary custody of Teagan. The father did not challenge that order, and Teagan’s presence in this state is sufficient to establish a basis for temporary emergency custody. Teagan has resided with her sibling’s foster family since the Connecticut trial court issued the order placing her in the commissioner’s temporary custody. It is significant to note that our decision is limited to the question of whether Connecticut had jurisdiction to make a final custody decision at the time the custody proceeding was commenced. We have no occasion, in this appeal, to consider whether the UCCJEA would provide another mechanism by which such a temporary order could become a final custody determination under the facts of this case; see General Statutes § 46b-115n (b) and (c); or whether Teagan could remain in the care of her sibling’s foster family even if the issue of a final custody determination is made by a Florida court. See General Statutes § 17a-175 (Interstate Compact on the Placement of Children); Fla. Stat. Ann. § 409.408 et seq. (West 2018) (Interstate Compact for the Placement of Children). Should either of those issues, or any other, arise hereafter, they will be addressed in the first instance by a Connecticut court.