OPINION
This case concerns whether the Navajo Nation Labor Commission (Commission) has jurisdiction to hear complaints by employees at the Navajo Generating Station (Station), which operates on the Navajo Nation (Nation) pursuant to a lease. The Court holds that there is jurisdiction, vacates the decisions of the Commission, and remands for further proceedings.
I
The relevant facts are as follows. Appellant Leonard Thinn (Thinn) was an employee of Appellee Station. Appellant Sarah Gonnie (Gonnie) was an employee of Appellee Headwaters Resources, a company doing contract work at the Station. Both were terminated by their respective employers. The Station is located on trust land within the Navajo Reservation. It operates under a lease between the Navajo Nation and Arizona Public Service Company and several other outside utilities signed in 1969. The Navajo Nation Council (Council) delegated its authority to approve the lease to the Advisory Committee of the Council. In its delegation resolution, the Council authorized the Advisory Committee to approve a lease with terms “the Advisory Committee deems to be in the best interest of the Navajo Tribe.” Resolution No. CMY-45-69, Resolved Clause 1(f) (May 27, 1969). The Advisory Committee then approved the lease and authorized Chairman Raymond Nakai to sign it. Chairman Nakai signed it on behalf of the Nation on September 29, 1969. One section of the lease purports to waive the Nation’s authority to regulate certain activities at the Station:
[The Nation] will not directly or indirectly regulate or attempt to regulate the Lessees in the construction, maintenance or operation of the Navajo Generating Station and the transmission systems of the Lessees, or the construction, maintenance or operation of the Fuel Transporter. This covenant shall not be deemed a waiver of whatever rights the Tribe may have to regulate retail distri-*561 button of electricity on Reservation lands.
Lease, ¶ 16. A separate section of the lease covers employment preference, mandating that the Station give “preference in employment to qualified local Navajos.” Lease, f 18. That provision further defines “local Navajos” and sets out under what circumstances such Navajos are to be given preference. The parties have not amended the lease since its execution.
Thinn and Gonnie filed separate complaints before the Navajo Nation Labor Commission, arguing that their terminations violated the Navajo Preference in Employment Act (NPEA). The Council passed the NPEA in 1985 to regulate employment relationships within the Nation. The act requires, among other things, that employers provide “just cause” when terminating employees. See 15 N.N.C. § 604(B)(8) (2005). Both Ap-pellees moved to dismiss the complaints for lack of subject matter jurisdiction, arguing that the Nation had waived the authority to regulate employment in Paragraph 16 of the lease. Appellees also argued that the Ninth Circuit Court of Appeals had already concluded that the Nation lacked authority to apply the NPEA under a virtually identical lease provision in its opinion in Arizona Public Service, Co. v. Aspaas,
Appellants filed separate appeals to this Court. The Court consolidated the two appeals, and invited the Navajo Nation Department of Justice to file an amicus brief, which it did. The Court held oral argument on February 23, 2007 at the Window Rock District Court.
II
The issue in this case is whether the Navajo Nation Labor Commission lacks jurisdiction over employment termination complaints filed by employees at the Navajo Generating Station when the lease allowing the Station to operate bars the Nation from “directly or indirectly” regulating the “construction, maintenance or operation” at the Station.
III
The parties frame the consolidated case as concerning whether Section 16 is an “unmistakable waiver,” and whether the Ninth Circuit’s opinion in Aspaas is binding on this Court, and thereby obliges it to rule that the Nation waived the power to regulate employment. Appellants further argue before this Court that the delegation of authority to the Advisory Committee cannot include the power to approve the alleged waiver, even if clear. The Court additionally asked the parties at oral argument whether the terms “construction,” “maintenance,” and “operation” include employment regulation.
A
Before discussing the merits of this case, it is important to explain the principles governing the Nation’s jurisdiction over non-Indians because the Station is a non-Indian entity. Under the Treaty of 1868 the Nation has authority to regulate non-Indian activity on trust lands. Dale Nicholson Trust v. Chavez, 8 Nav. R. 417,
Appellees correctly point out the Navajo principle that words are sacred and never frivolous, and therefore agreements must be fulfilled. Bailon,
B
Operation is not defined in the lease. The Court holds that it is not “unmistakable” that “operation” includes the employment relationship between the Station and its workers. Section 16 includes three terms, “construction,” “maintenance,” and “operation.” The Station and Headwaters Resources contend “operation” includes employment, apparently based on a plain language meaning of the term. However, the meaning is not so obvious. The lease nowhere defines the term, and it is not self-evident that it includes the regulation of employment relationships at the Station. It might be that the term is restricted to the physical “operation” of the Station, that is, the mechanical or technical aspects of the generation and transmission process. It might be that “operation” means the regulation of electric rates charged to the various users of the Station’s electricity once the electricity is transmitted out of the Station. Indeed, the waiver provision includes a caveat, in that the Nation explicitly retains the authority to set retail electric rates on Navajo lands, suggesting the Nation otherwise intended to waive rate-setting authority. It might be that “operation” includes both mechanical operation and human labor at the Station, and therefore could include the regulation of human labor. However, given these multiple possibilities, without some clarification of the intended definition, the term “operation” does not “unmistakably” include employment.
This conclusion is bolstered by the fact that there is a separate provision in the lease setting employment preference. In Bailón the Court considered the meaning of an alleged waiver in a lease with a school district in the context of all of the provisions in the lease. See
Further, the legal context at the time of the lease precludes interpreting “operation” to include employment. In Bailón, the Court concluded that the general waiver could not have included employment preference under the Navajo Preference in Employment Act, as the Navajo Nation Council had passed the NPEA several months before the Chairman signed the lease. See id. at 415-16,
All public officials in the Nation have a fiduciary responsibility to the Navajo people to execute the trust the People have placed with them in the administration of the government. See Thompson v. Navajo Nation, 6 Nav. R. 181, 183-84 (Nav.Sup.Ct.1990). The Council, being the People’s servant and agent, has this responsibility. See id. The Council works for and on behalf of the People in their role as naat’ánü in the Naat’ájí Na-hat’ááh (Legislative Branch). The Council legislates in the best interest of the People. See id.; In re Certified Questions II, 6 Nav. R. 105, 115, 116 (Nav.Sup.Ct.1990). Great responsibilities are placed upon the Council. Through legislation it creates offices and duties and responsibilities of officials. Id. at 12. Through legislative oversight it ensures the proper execution of these duties and responsibilities.
Just as there are fundamental rights and freedoms of individuals as acknowledged by the Council in the Navajo Bill of Rights, there are fundamental rights of the collective People, the tribal nation, as acknowledged and recognized in the Fundamental Law statute. See 1 N.N.C. §§ 202(B) (recognizing the “collective rights and freedoms of the Diyin Ni-hookáá. Dine as a distinct people”); 204 (identifying several rights of the People) (2005). It is central and foremost that the Council protects the rights of the tribe and its government. The duty to protect the government is essential, for it is through the government that the People exercise their inherent right of self-government, including conducting the business of government with other governments and regulating and approving the use or disposition of the People’s communal property the land
Under Fundamental Law, the leaders do not ever lay down this trust and the laws because a leader is taught that they must find the solution, for it is always available. Naat’áanü ídlyygo éí. t’áá nantt’a dóó t’áá nahontt’cdó, háálá lahgóó t’áá. nístl’a dahmizt’i’ ákondi Diñé Bibee-haz’ámiii dóó fume’ bina/tjf baantsáhák-eesgo éí choó’fál dóó hasih ntsáhákeesígíí beego éí t’áá bik’ee’aan hodeezt’i’ dóó ch’ídahmizt’i’, dóó inda bikáá’ háadahm-izt’T. Diyin Dine’é Ts’aa’ hadeiidiilaaígn éí t’áá. ákót’éigo yii hadad,eiidiilaalá; yah’ahóót’i’, alhééhonit’i’ dóó ch’ééhonít’i’, doo éí t’óó dádeestl’qq da. fíinahjf éí t’áá, hat’éigi sh\\ hanahat’a’ bee nistl’ajiyáago, hanahat’a’ bee hazhdinoodzíí’ dóó ajisii-hgoda. éí dóó hanahat’a’ dóó habeehaz’úa-nii doo t’óó ni’ nizhdooléelda, hatsodizin dóó hitóiie’ éí bee bikáá’ haazhdoodáát dóó bee nistl’ahazt’i’qq bee hózhqqgo bik'idiyaa nízhdooleel dóó bi’cjgzh doo gáál As explained above, and as demonstrated in the design of the sacred wedding basket, a leader through adherence to the laws, the analysis of the stories of the Diñé journey, and a positive approach will find a solution (bi’g’iídzá) around, through, or over that which confronts the people.
Under the circumstances of this case, the Council could not have legally agreed to waive employment regulation, and, per Bailón, could not have legally delegated the power to waive such regulation to the Advisory Committee. See supra, at 562-63. Therefore, the delegates could not have understood the waiver of “operation” regulation to surrender their responsibility to protect and regulate employment relationships on the Navajo Nation. Thus, there is no unmistakable waiver in the lease, as such waiver is inconsistent with Navajo principles of leadership responsibility to the people.
Based on the above analysis, the Nation retains the authority to regulate employ
C
Even assuming arguendo that the Ninth Circuit’s opinion in Aspaos is binding on this Court, see Allstate Indemnity Co.,
As explained above, the Council’s power to waive laws and to delegate legislative authority is not absolute under Navajo law, and the Circuit Court is without authority to alter that interpretation. Like interpretations of state law by the highest court of a state, federal courts must defer to this Court’s interpretation of Navajo law. See Hinshaw v. Mahler,
IV
Based on the above, the Commission’s decisions are hereby REVERSED and VACATED. The cases are REMANDED for further proceedings on the merits of Appellants’ claims.
Notes
. This responsibility is to all people within the Nation, whether Navajo or non-Navajo. Consistent with this view, the Court interprets the NPEA to protect all employees within the Nation, including non-Indians. See Milligan v. Navajo Tribal Utility Authority,
. The federal and state governments have their legal principles that a sovereign's police powers, an essential attribute of sovereignty, cannot be surrendered by contract. See, e.g., United States Trust Co. of New York v. New Jersey,
. The Circuit Court did discuss the establishment of a process to resolve disputes concerning employment matters at the Four Comers Power Plant, and stated that the agreement to resolve such disputes was of "particular significance” in its finding of an unmistakable waiver. See id. at 1135. That process was created through a 1985 “Letter Agreement” between the parties at the Four Comers Power Plant, and was incorporated as an amendment to the original lease. Id. at 1130-31. The lease at issue in this case, for the Navajo Generating Station, has not been amended to include an equivalent dispute resolution process.
