OPINION OF THE COURT

At issue on this appeal is whether teaching assistants (TAs) fall within the purview of Education Law § 3013 (2) for the purpose of determining layoffs. We conclude that they do, and we affirm the order of the Appellate Division.

I

The Board of Cooperative Educational Services for the Madison-Oneida school districts (BOCES) laid-off nine TAs on June 1, 2001, effective June 30, 2001. The layoffs were not in accordance with the seniority system within the tenure track *55“teaching assistant”1 pursuant to Education Law § 3013 (2).2 Five of the nine TAs were senior to teaching assistants who did not receive layoff notices. Three of the nine TAs were the least senior within their respective areas and they did not appeal the layoff decisions. One person was rehired prior to the start of the 2001-2002 school year.

On September 24, 2001, the five named TAs filed a CPLR article 78 petition challenging the layoffs. Supreme Court dismissed the petition, retaining primary jurisdiction but allowing the Commissioner of Education to determine whether or not the teaching assistants were included within the purposes of Education Law § 3013 (2) and, consequently, whether the TAs should have been dismissed based on seniority.

Following Supreme Court’s decision, in November 2001, the TAs appealed to the Commissioner for a determination that the TAs were teachers pursuant to Education Law § 3013 (2). In March 2002, the Commissioner rejected BOCES’s arguments that the TAs were similar to vocational teachers because there were no specific educational, certification, or licensure requirements to be a TA. The Commissioner annulled BOCES’s determination that the teaching assistants were not teachers, and did not have to be fired according to seniority, and reinstated TAs to full-time teaching positions with back pay and benefits, effective July 1, 2001. The Commissioner found that “teaching assistants are protected by Education Law § 3013 (2).” Further, the Commissioner determined that the plain meaning of 8 NYCRR 30.8 placed “all teaching assistants in the same special subject tenure area of teaching assistant [which] directly contradicts the argument that teaching assistants hold tenure” within a specific subject area of teaching assistant.

In July 2002, BOCES commenced an article 78 proceeding to have the Commissioner’s determination annulled. In December 2002, Supreme Court annulled the Commissioner’s determination, observing that Education Law §§ 3014-a and 3014-b had *56been amended in 1998 to include teaching assistants and teacher aides but that Education Law § 3013 had not been so amended. The Supreme Court stated, “An interpretation of the statute [§ 3013 (2)3 to include teachers assistant [sic] is inconsistent with the plain wording of the statute and would serve to preempt the function of the State Legislature.”

In December 2003, Appellate Division reversed and found that:

“Education Law § 2510 (2), § 2585 (3) and § 3013 (2) are nearly identical statutes that provide lay-off seniority protection to tenured teachers employed by small city school districts, large city school districts and other boards of education, including boards of cooperative educational services. Each of these sections states that, when a position is abolished, ‘the services of the teacher having the least seniority in the system within the tenure of the position abolished shall be discontinued’ .... Significantly, we have noted that ‘teacher’ has different meanings in different contexts in the Education Law ....

“[T]he courts of this state have applied the term ‘teacher’ to include other professional educators in interpreting Education Law § 2510 (2), § 2585 (3) and § 3601-a (27) (a) (1)” (2 AD3d 1240, 1241 [2003] [citations omitted]).

Further, Appellate Division determined, “It would be anomalous to construe Education Law § 3013 (2) to deny TAs layoff seniority at the time their positions are abolished while granting them recall seniority for reinstatement to similar positions after their positions are abolished” (id. at 1242 [emphasis in original]). This Court granted leave to appeal.

II

Pursuant to Education Law § 1950, BOCES provides occupational programs for students within a specific school district. The programs employ TAs to supplement the services of classroom teachers (see 8 NYCRR 80-5.6 [b] [1] [ii] [b]).3 TAs are in tenure-based positions pursuant to parallel statutes (see *57Education Law §§ 3012,4 30145. Their credential and licensure requirements are outlined in 8 NYCRR 80-5.6.

The five laid-off TAs were in the areas of special education, career exploration, community based occupation counseling, and pre-kindergarten. Effective June 30, 2001, the five teaching assistants on this appeal were laid off due to declining enrollment in their respective programs. The TAs were not laid off according to seniority but rather based upon the needs of BOCES. BOCES argues that teaching assistants are not teachers within the meaning of Education Law § 3013 (2), and thus, are not protected by the same statutory tenure requirements. Further, BOCES argues that teaching assistants are different from other professional educators and that TAs can still have tenure protection without inclusion in section 3013 (2).

The TAs counter that they are teachers within the meaning of Education Law § 3013 (2) and § 2510 (2), and argue that the Commissioner of Education of New York State (the Commissioner) should be given deference because of “the special knowl*58edge and expertise of the Commissioner.” The TAs argue for a broad definition of the word “teacher” which they support with case law (see Matter of Volk v Board of Educ. of City School Dist. of Rochester, 83 NY2d 930, 932 [1994] [tenure statute, Education Law § 2585 (3), term teacher applied to school administrator/supervisor]; Steele v Board of Educ. of City of N.Y., 40 NY2d 456, 463 [1976] [teacher applied to elementary school guidance counselors under section 2585 (3)]).

First, as noted by the Commissioner, the duties of a teaching assistant are to aid those teachers who are trained to teach specific subjects to students. Pursuant to the Rules of the Board of Regents, professional educators may serve in the “special subject tenure area of teaching assistant” (8 NYCRR 30.8 [d]). Thus, all teaching assistants are part of the same subject area.

In order to have an internally consistent interpretation between tenure track statutes, statutes of appointment (§ 3012 [1] [a]; § 3014 [1]) must have a parallel interpretation with statutes of abolition (§§ 2510,6 3013 [2]; see also Education Law §§ 3020, 3020-a [pretermination procedures]). The legislative history of section 3013 (2) supports the conclusion that persons hired by a board of education or a BOCES should be laid off according to seniority. Thus, for layoff purposes, TAs fall within the ambit of section 3013 (2). Teaching assistants, which is a separate tenure area from teachers, should not have their abolition rights judged by whether or not they meet the qualifications and credentials of teachers (see 8 NYCRR 80-5.6 [b]). Their separate credentials have been accorded tenure, and the TAs should have due process rights within that system. It is the due process rights of professional educators, not just those of teachers, which the Legislature sought to protect in the abolition of position or office pursuant to section 3013 (2).

Ill

At times deference is accorded to an administrative agency because of its expertise in a given area (see Kurcsics v Merchants Mut. Ins. Co., 49 NY2d 451, 459 [1980];7 Matter of Davis v Mills, 98 NY2d 120, 125 [2002] [“It is for the Commissioner in the *59first instance and not for the courts, to establish and apply criteria to govern the selection and retention of qualified educators and staff’]; Matter of Board of Educ. of City School Dist. of City of Oneida v Nyquist, 45 NY2d 975, 976 [1978] [finding that dissent’s reasoning at the Appellate Division, that the Commissioner’s determination that a teacher had acquired tenure was due deference, was correct]). However, in the instant case, this Court is faced with the interpretation of statutes and pure questions of law and no deference is accorded the agency’s determination (see Kurcsics, 49 NY2d at 459;8 Matter of Gruber [New York City Dept, of Personnel—Sweeney], 89 NY2d 225, 231 [1996]). Teaching assistants are professional educators for the purposes of the tenure track system as outlined in 8 NYCRR part 30 (see 8 NYCRR 30.1 [e]; 30.8 [d]). It makes no difference whether the teaching assistant is part of the board of education or board of cooperative educational services (see id.). Further, for purposes of abolishing positions, the term “teacher” includes teaching assistants.

Education Law § 3012 (1) (a) and § 3014 (1), which are tenure sections of the Education Law, address appointments of “[t]eachers and all other members of the teaching” staff (see Education Law § 3012 [1] [a]; § 3014 [1]). The laws are not intended to allow distinctions which only benefit the school system, and ultimately harm the teachers (see Ricca v Board of Educ. of City School Dist. of City of N.Y., 47 NY2d 385, 391 [1979] [“The tenure system is not an arbitrary mechanism designed to allow a school board to readily evade its mandate by the creation of technical obstacles on a qualified teacher’s trail to tenure”], citing Matter of Baer v Nyquist, 34 NY2d 291 [1974]).

Education Law § 3013 (2) and § 2510 (2) address the abolition of a position or layoff (see Education Law § 3013 [2]; § 2510 [2]). In both statutes, “the services of the teacher having the least seniority in the system within the tenure of the position abolished shall be discontinued.” The phrase “services of the *60teacher” is to be distinguished from services of supervisory and administrative staff, rather than from those of a teaching assistant or teacher aide (see 8 NYCRR part 80). If in fact it was the intent of the Legislature to exclude teaching assistants from the tenure track system for purposes of abolition, then there would be no protection from layoffs for teaching assistants who gain tenure in that position (see Steele, 40 NY2d at 463 [Legislature created various tenure areas under 8 NYCRR part 30]). Because such protection appears to have been contemplated in other relevant statutes, it is probable that the Legislature intended to include teaching assistants in Education Law § 3013 (2) for purposes of layoffs (see 1992 NY Assembly Bill A 11062-Á;9 see also 1997 NY Senate Bill S 3426-C [under sections 3014-a and 3014-b, extending benefit in rehiring not just to teachers but to teaching assistants]).

IV

Section IV of the Personnel Policy on Tenure addresses seniority for teachers, teaching assistants, coordinator, and director, etc. The Policy states in pertinent part: “Seniority for purposes of abolition of positions shall be determined by length of service within a tenure area.” From its Personnel Policy, the Madison-Oneida BOCES contemplated inclusion of teaching assistants into the tenure system and intended that the system be based on a formula for seniority (see Steele, 40 NY2d at 463 [Court upholds seniority formula applied to elementary school guidance counselors]). BOCES, in the instant action, appears to be going against its own policies for the purposes of dismissing teaching assistants.10

*61V

Previous case law supports the use of the term “teacher” for positions other than an actual classroom teacher (see Matter of Volk, 83 NY2d at 932 [applying Education Law § 2585 (3)* 11 to school administrator/supervisor requiring that the “teacher having the least seniority in the system within the tenure of the position abolished shall be discontinued”]; Steele, 40 NY2d at 463 [applying Education Law § 2585 (3) to elementary school guidance counselors]). Thus, applying the term “teacher” to teaching assistants would not create precedent in terms of using the term for persons other than teachers. In fact, contrary to BOCES’s view, applying the term teacher to a TA would be a logical extension of the term.

BOCES’s hands will not be tied because they are unable to abolish positions in areas where TAs are no longer needed12 (see Matter of Davis, 98 NY2d at 124-125 [former school psychologist not entitled to position as elementary school counselor which required different certifications]; Matter of Young v Board of Educ. of Cent. School Dist. No. 6, 35 NY2d 31, 34 [1974] [no violation of tenure system when position of attendance teacher was abolished and duties transferred to those of assistant principal and principal]; Matter of Cohoes City School Dist. v Cohoes Teachers Assn., 40 NY2d 774, 777 [1976] [school board required to exercise authority in making tenure decisions]). *62However, applying Education Law § 3013 (2) to teaching assistants will prevent BOCES from acting in an arbitrary manner in abolishing positions within the subtenure area of teaching assistant (see Matter of Baer, 34 NY2d at 295, explained by Matter of New York City Dept, of Envtl. Protection v New York City Civ. Serv. Commn., 78 NY2d 318 [1991] [“Radical restructuring of tenure areas, compatible with the purpose of the tenure statutes, should not be free of controlling regulations or express standards propounded by the Board of Regents or enacted by the Legislature”]).

Accordingly, the order of the Appellate Division should be affirmed, with costs.

Chief Judge Kaye and Judges Ciparick, Rosenblatt, Graffeo, Read and R.S. Smith concur.

Order affirmed, with costs.