LOIS ELAINE MEHLHAFF, Appellant, v. TACOMA SCHOOL DISTRICT No. 10, ET AL., Respondents.
 Statutes - Construction - Meaning of Words - Absence of Statutory Definition - Considered as a Whole. When determining the meaning of a statutory term that the statute does not define, a court examines the entire statute, not simply the particular provision in which the term occurs.
 Schools - Teachers - Substitute Teachers - Salary. The minimum salary requirement of RCW 28A.400.200(2)(a) applies only to full-time equivalent public school teachers who are contracted to provide services for 180 days; the requirement does not apply to substitute teachers employed in the public schools.
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 Statutes - Construction - Legislative Intent - Administrative Construction. The contemporaneous construction of a statute by the administrative agency charged with its enforcement may be probative of the Legislature's intent, especially if thy construction has not subsequently been altered by the Legislature.
Nature of Action: A substitute teacher claimed that she had been underpaid by a public school district.
Superior Court: The Superior Court for Pierce County, No. 94-2-11460-9, Thomas Felnagle, J., on April 4, 1997, entered a summary judgment in favor of the school district.
Court of Appeals: Holding that the Legislature did not include substitute teachers in the definition of "certificated instructional staff" so as to entitle the plaintiff to the same rate of pay as a full-time teacher, the court affirms the judgment.
Bertha B. Fitzer, for appellant.
Zane A. Brown, Jr., and Valerie L. Hughes of Perkins Coie, for respondents.
BRIDGEWATER, A.C.J. - Lois Elaine Mehlhaff, a substitute teacher, appeals a summary judgment order, contending she has been underpaid by the Tacoma School District. We hold that the Legislature did not include substitute teachers in the definition of "certificated instructional staff" to entitle them to the same rate of pay as full-time teachers. We affirm.
From 1987 through 1997, Mehlhaff worked as a basic education substitute teacher for the Tacoma School District. She worked between 19 and 109 days per year, averaging just under 50 days per year. Mehlhaff and other substitute teachers are represented by Tacoma Education
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Association (TEA). The collective bargaining agreement negotiated by TEA provides that substitute teachers receive a set wage for each day worked and does not require them to work a minimum number of days. Conversely, full-time teachers are paid an annual salary and are expected to work 183 days a year.
In 1994, Mehlhaff filed a grievance with TEA, arguing that the bargained for rate of pay did not comply with RCW 28A.400.200. That statute requires that all "certificated instructional staff" be paid no less than the salary paid to an "employee with a baccalaureate degree and zero years of service." RCW 28A.400.200(2)(a). Based on this language, she argues that the rate of pay for substitute teachers should be no less than 1/180th of a first year full-time teacher's salary.«1» The grievance was denied because (1) Mehlhaff receives a "wage" and therefore cannot be guaranteed a minimum "salary," and (2) the Legislature provides less funding for substitute teachers than for full-time teachers.
Mehlhaff then filed an unfair labor practice complaint against the district with the Public Employment Relations Commission (PERC). She argued that TEA and the School District bargained for a rate of pay not in compliance with RCW 28A.400.200. PERC denied her claim, holding that the Legislature's budget and the Superintendent of Public Instruction's (SPI) funding scheme contradict Mehlhaff s position.«2» Before PERC issued its decision, Mehlhaff filed a claim in Pierce County Superior Court. The trial court dismissed her claim on summary judgment in favor of the School District. She originally appealed that dismissal to the state Supreme Court, which transferred her appeal to this court.
I. Express Language of Statute
RCW 28A.400.200 sets minimum salary requirements for
«1» Full-time teachers are contracted to work a minimum of 180 days per year. WAC 392-121-215.
«2» Tacoma Sch. Dist., 18 Wash. Pub. Empl. Rel. Rep. 5086-1 (PECB 1995).
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public school teachers. Specifically, the statute provides, in part: "[s]alaries for certificated instructional staff shall not be less than the salary provided in the appropriations act in the state-wide salary allocation schedule for an employee with a baccalaureate degree and zero years of service . . . ." RCW 28A.400.200(2)(a) (emphasis added).
Mehlhaff contends that all public school" instructors, whether full time, part time or substitute, are included under this statute. She contends that she is a member of (IIP School District's "certificated instructional staff for purposes of RCW 28A.400.200 and is thus entitled to 1/180th of the base salary on the state's salary allocation schedule for each day she works as a substitute. We disagree.
 A definition of "certificated instructional staff" is not found in RCW 28A.400. Absent an express definition in a statutory provision, we may look to the entire statute, not simply the particular provision, that is at issue. Whatcom County v. City of Bellingham, 128 Wn.2d 537, 546, 909 P.2d 1303 (1996). Elsewhere in the statute,: "basic education certificated instructional staff is defined as "all full time equivalent certificated instructional staff in . . . [b]asic education . . . ." RCW 28A.150.100(1). The definition specifically applies to RCW 28A.400.200. See RCW 28A.150.100(1).
Mehlhaff attempts to distinguish between "certificated instructional staff" as that phrase is used in RCW 28A.400.200(2) and "basic education certificated instructional staff" in RCW 28A.150.100d). She argues that she is a "certificated instructional staff member, but not a "basic education certificated instructional staff member. But she teaches as a substitute for basic education certificated instructional staff, teaching subjects that are basic education. See RCW 28A.150.220. She is therefore a basic education substitute, not a non-basic education substitute.
 Even if Mehlhaff were something other than basic education staff, her argument fails by the very wording of the statute in former RCW 28A.400.200(3)(c) (1993):
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Salary and benefits for certificated instructional staff in programs other than basic education and special education shall be consistent with the salary and benefits paid to certificated instructional staff in the basic education program.
The funding scheme applies equally to staff in basic and non-basic educational programs. Thus, the minimum salary set forth in RCW 28A.400.200(2)(a) applies only to full-time certificated instructional staff, whether they teach in a basic education program or another program.
It is clear from the express language that the minimum salary requirement of RCW 28A.400.200 applies only to full-time equivalent teachers who are contracted to provide services for at least 180 days. Mehlhaff has never been a "full-time equivalent" teacher and is not entitled to receive the minimum salary.
II. Legislative Intent
After a review of the legislative history and later legislative acts, coupled with administrative interpretations, we hold that the Legislature did not intend the statutory salary allocation schedule to create a minimum per diem wage for daily substitutes. We focus on two areas:
(1) The Legislature has consistently funded substitute teachers from a separate budget. Specifically, the substitute teacher funding allocation is included in the basic education general apportionment scheme, while full-time teacher salary funding allocations are included in the basic education employee apportionment scheme. See, e.g., LAWS OF 1987, 1st Ex. Sess., ch. 7, §§ 503(7), 504. Thus, the Legislature treated "Certificated Instructional Staff and "Substitutes" as different groups for purposes of salary funding.
 (2) The SPI has not treated substitutes as equivalent to certificated instructional staff. The SPI submitted a fiscal impact statement to the Legislature before adoption of the statute, wherein he listed estimated costs of certificated
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instructional employee salaries separately from the estimated costs of substitute wages. In addition, the School District does not report substitute teachers on forms the SPI uses to prepare statewide staff statistics. The SPI does not require information about substitutes from school districts because it does not consider the number of substitute teachers employed by the district when calculating a district's salary allocation. To do so would be inconsistent with the statutory allocation scheme. See RCW 28A.150.410d) (salary allocation schedule "to be used to distribute funds for basic education certificated instructional staff salaries"). And, as discussed above, this means "full time equivalent certificated instructional staff" under RCW 28A.150.100. The SPI's construction of RCW 28A.400.200(2) is probative of the Legislature's intent. See Green River Community College v. Higher Educ. Personnel Bd., 95 Wn.2d 108, 117-18, 622 P.2d 826 (1980), modified, 95 Wn.2d 962, 633 P.2d 1324 (1981) (statute's contemporaneous interpretation by the administrative agency charged with its enforcement is persuasive of legislative intent, especially where construction not subsequently altered by the Legislature).
In conclusion, neither the statute nor an examination of legislative intent supports Mehlhaff's position. The trial court did not err.
MORGAN and ARMSTRONG, JJ., concur.