¶ 1 Before suing a public entity for damages, a plaintiff must file a notice of claim “with the person or persons authorized to accept service for the public entity ... as set forth in the Arizona rules of civil procedure within one hundred eighty days after the cause of action accrues.” Ariz.Rev.Stat. (“A.R.S.”) § 12-821.01(A) (2003). If the public entity is a county, the persons authorized to accept service under Arizona Rule of Civil Procedure 4.1(i) are either “the chief executive officer, the secretary, clerk, or recording officer thereof.”
¶ 2 This case requires us to decide whether delivery of a notice of claim to one member of a county board of supervisors complies with A.R.S. § 12-821.0KA) and Rule 4.1(i). We hold that the board of supervisors is the chief executive officer of the county for purposes of Rule 4.1(i) and that delivering a notice of claim to only one member of the board does not comply with the requirements of either the statute or the rule.
I
¶ 3 Guadalupe Falcon died after receiving care at Maricopa Medical Center, a facility owned and operated by Maricopa County. The Falcon children (“plaintiffs”) decided to sue Maricopa County, among others, for medical malpractice.
¶ 4 Attempting to comply with A.R.S. § 12-821.01(A), the plaintiffs sent a notice of claim letter by certified mail to Supervisor Andrew Kunasek, a member of the Maricopa County Board of Supervisors. The receipt for the certified letter was signed for by an agent of the county authorized to sign for such mail. The letter was apparently lost at an undetermined point. The record does not disclose whether the letter was delivered to Supervisor Kunasek’s office. Had the letter been so delivered, the office policy would have been for Mr. Kunasek’s secretary to forward it to the clerk of the board of supervisors.
¶ 5 After failing to receive a response to their notice of claim letter, the plaintiffs filed a lawsuit against Mаricopa County. Maricopa County subsequently filed a motion for summary judgment contending that the plaintiffs had not served a notice of claim on a “person or persons authorized to accept service for the [county] ... as set forth in the Arizona rules of civil procedure.” A.R.S. § 12-821.01(A). The superior court granted summary judgment in favor of the county. The plaintiffs appealed, asserting that dеlivery of a certified letter to one member of the board of supervisors satisfies the requirements of A.R.S. § 12-821.0KA) and Rule 4.1(i).
¶ 6 The court of appeals, in a divided opinion, reversed and held that service on one member of the board satisfies Rule 4.1(i).
Falcon v. Maricopa County,
¶ 7 Judge Orozco dissented. She agreed with the majority that the board of supervisors of Maricopa County is its chief executive officer.
Id.
at 149, ¶¶ 19, 21,
¶ 8 We granted Maricopa County’s petition for review because the court of appeals’ interpretation of Rule 4.1(i) has important legal and practical consequences for political subdivisions of the State. We have jurisdiction under Article 6, Section 5(3), of the Arizona Constitution and A.R.S. § 12-120.24 (2003).
II
¶ 9 The notice of claim requirements in A.R.S. § 12-821.01 serve “to allow the public entity to investigate and assess liability, to permit the possibility of settlement prior to litigation, and to assist the public entity in financial planning and budgeting.”
Martineau v. Maricopa County,
¶ 10 If a notice of claim is not properly filed within the statutory time limit, a plaintiffs claim is barred by statute.
Salerno v. Espinoza,
¶ 11 The plaintiffs contend that when they sent their notice of claim to Mr. Kunasek, a member of the board of supervisors, they complied with Rule 4.1(i). Maricopa County, on the other hand, argues that delivery of a notice of claim to a single member of the board does not comply with the rule. Alternatively, the county and amici, which include various Arizona counties, cities, and school boards, assert that the Maricopa county manager, nоt the board of supervisors, is the county’s “chief executive officer.”
¶ 12 To decide whether service upon one member of a county board of supervisors satisfies Rule 4.1(i), we must first determine whether the board of supervisors is the “chief executive officer” of the county. If the whole board is the chief executive officer, we must then decide whether service upon one member of that body satisfies Rule 4.1(i).
Ill
A
¶ 13 Rule 4.1(i) does not define the term “chief executive officer.” With respect to municipal corporations such as cities and towns, the mayor is statutorily denominated the chief executive officer. A.R.S. § 9-236 (1996); id. § 9-273(B) (Supp.2005). But with other governmental subdivisions, such as counties and school boards, the statutes do not specifically identify the chief executive officer.
¶ 14 “Executive” is generally defined as “[t]he branch of government responsible for effecting and enforcing laws; the person or persons who constitute this branch.” Black’s Law Dictionary 610 (8th ed.2004). An officer is “[a] person who holds an office of trust, authority, or command.” Id. at 1117. The word “chief’ means “[a] person who is put above the rest; the leader.” Id at 253. A chief executive officer, therefore, is the individual or entity that controls, supervises, and has the ultimate responsibility for ensuring the proper function of a governmental entity. Based upon the statutory powers and duties of a board of supervisors, we conclude that a county’s board of supervisors is its chief executive officer.
¶ 15 The board’s powers include supervising county officers, A.R.S. § 11-251(1) (Supp. 2005); levying taxes, id. § 11-251(12); maintaining and controlling public roads, fеrries and bridges, id. § 11-251(4); providing for county hospitals, id. § 11-251(5); erecting jails and courthouses, id. § 11-251(8); “[making] and enforc[ing] all local, police, sanitary and other regulations not in conflict with general law,” id. § 11-251(31); and purchasing real property, id. § 11-251(45). Most importantly for purposes of this case, the board has the power to “[d]ireet and control the prosecution and defense of all actions to which the county is a party, and compromise them.” Id. § 11-251(14).
¶ 17 Like the court of appeals, we reject the argument that the county manager of Maricopa County is its chief executive officer.
See Falcon,
¶ 18 Because we hold that the board of supervisors is the chief executive officer of a county, we now turn to the question of whether the board of supervisors may be served through one of its members.
B
¶ 19 The plain language of Rule 4.1(i) requires service on the chief executive officer, and the parties agree that Mr. Kunasek, as a member of the board, is not the chief executive officer of the county. Thus, the issue is whether service on one member of the board is service on all for purposes of the rule.
¶ 20 Although the individual members of the board are officers of the county, A.R.S. § 11-401(A)(7), the board cannot exercise its executive power except through collective action of the majority of the board because the county board of supervisors is a “public body.” A.R.S. § 38-431(6) (2001). “All legal action of public bodies shall occur during a public meeting.” A.R.S. § 38-431.01(A) (2001). “ ‘Legal action’ means a collective decision, commitment or promise made by a public body pursuant to the constitution, the public body’s charter, bylaws or specified scope of appointment and the laws of this state.” A.R.S. § 38-431(3).
¶ 21 Individual supervisors do not have the power to “[d]irect and control the prosecution and defense of all actions to which the county is a party, and compromise them.” A.R.S. § 11-251(14). Delivery of a notice of claim to only one board member does not further the purpose of A.R.S. § 12-821.01(A) by providing the county the оpportunity to consider the claim and possibly settle it.
See Falcon,
C
¶ 22 The court of appeals’ majority opinion nevertheless found three reasons to support
¶ 23 Three subsections of Rule 4.1 address the proper method for service upon government entities. Rule 4.1(h) governs service upon the state. 2 Rule 4.1(i) describes the method of service on counties, municipal corporations, or other governmental subdivisions. Rule 4.1(j) directs the method of service on governmental entities not listed in either subsection (h) or (i). Specifically, Rule 4.1 (j) states:
Service upon any governmental entity not listed above shall be effected by serving the person, officer, group or body responsible for the administration of that entity or by serving the appropriatе legal officer, if any, representing the entity. Service upon any person who is a member of the “group” or “body” responsible for the administration of the entity shall be sufficient.
Id. (emphasis added). By its plain language, Rule 4.1(j) does not apply here. Because the requirements for serving a county are specifically set forth in Rule 4.1(i), Rule 4.1(j) has no relevance in determining the proper person to be served when a claim is made against a county. Similarly, Rule 4.1(k) is not applicable because it describes the procedure for serving corporations, partnerships, or other unincorporated associations, not governmental entities.
¶ 24 Second, the court of appeals cited its “duty to liberally construe procedural rules that do not speak to a sеt of facts,” so as not to create a trap for the unwary.
Falcon,
¶ 25 Third, the court of appeals noted that serving only one member of the board adequately accomplishes the purposes of A.R.S. § 12-821.01(A), which include putting the county on notice and giving it an opportunity to resolve forthcoming claims.
Falcon,
¶26 Finally, the rule fashioned by the majority below could create serious problems for other political subdivisions covered by Rule 4.1(i). An interpretation of Rule 4.1(i) that “service may validly be completed on an individual member of a governing board has the potential for numerous problems, unintended or otherwise, considering the part-time nature of many of these positions.”
Falcon,
IY
¶27 The plaintiffs nevertheless contend that they properly filed their notice of claim with the clerk of the board of supervisors because Mr. Kunasek’s office policy was to forward the letter to the board’s clerk. We reject this argument as speculative; the rule requires service on the board, not оn someone whose usual practice is to forward the claim to the board.
¶ 28 The plaintiffs rely on
Creasy v. Coxon,
¶ 29 In
Creasy,
the court of appeals held that serving a notice of claim on the offices of the President and Vice-President of Central Arizona Community College was sufficient to effect service, even though neither had the notice “placed directly” in his hands.
Id.
at 147—48,
¶ 30 Creasy does not apply here because the plаintiffs did not deliver their notice of claim to the office of a person or entity listed in Rule 4.1(i). The plaintiffs’ notice of claim letter was addressed to Supervisor Kunasek directly and, as discussed above, Mr. Kuna-sek is not an authorized person to accept service for the county under Rule 4.1(i). Thus, the plaintiffs did not deliver their notice of claim to the chief executive officer or the office of the chief executive officer of Maricopa County. In addition, they did not deliver their notice of claim to the clerk of the board of supervisors or the office of the clerk. Therefore, the plaintiffs did not properly serve the clerk of the board of supervisors.
¶ 31 The plaintiffs also contend that they relied on Arizona case law, specifically
Blau-velt,
¶ 32
Blauvelt
did not address the proper method of service for the board of supervisors; rather, it addressed whether filing a notice of claim with the county recorder satisfied Rule 4.1(i)’s predecessor, Rule 4(d)(8).
¶ 33 Similarly, the language the plaintiffs point to in
Arizona Tax Court
is simply a repetition of the dictum from
Blauvelt.
V
¶ 34 In sum, the chief executive offiсer of a county for purposes of Rule 4.1(i) is the board of supervisors. Therefore, delivery of a notice of claim to one member of the board does not comply with either the statute or the rule, and such a procedure does not serve the purposes of A.R.S. § 12-821.01(A).
VI
¶ 35 For the foregoing reasons, we vacate in part the opinion of the court of appeals and affirm the judgment of the superior court.
Notes
. Maricopa County has specifically authorized the clerk of the hoard of supervisors to accept filings of notices of claims. See Maricopa County Risk Management, Notice of Claim Form Against Maricopa County 3, http://ww w.marico-pa.gov/Clk_board/pdl7Claimfonn_Notice.pdf (last visited Oct. 24, 2006) (stating speсifically that the notice of claim, form should be returned to the clerk of the board of supervisors and providing no alternate address or means of service). The plaintiffs did not serve their claim on the clerk of the board.
. Rule 4.1 (h) provides: "If a waiver has not been obtained and filed, service upon the state shall be effected by delivering a copy of the summons and of the pleading to the attorney general."
. Creasy was decided under the previous version of A.R.S. § 12-821.01(A), which stated that "[p]ersons who have claims against a public entity or public employee shall file such claims in the same manner as that prescribed in the Arizona Rules of Civil Procedure, Rule 4(D) within twelve months after the cause of action accrues.” A.R.S. § 12-821 (Supp.1985). Although Creasy did not refer to a specific subsection of Rule 4(d), former Rule 4(d)(8) is a nearly verbatim version of current Rule 4.1(i). See 16 A.R.S. Rules Civ. Proc., Rule 4(d)(8) (1987).
