This case involves an interpretation of the Solid Waste Management Act and Const 1963, art 9, §29, a provision of the Headlee Amendment, which in part, requires the state to appropriate funds to units of local government for the necessary increased costs associated with "an increase in the level of any activity or service beyond that required by existing law . . . .” The specific question in this case is whether application of the provisions of the Solid Waste Management Act to plaintiff’s sanitary landfill triggers art 9, §29’s state funding requirement. We hold that Const 1963, art 9, § 29 applies only to services and activities required by state law and that operation of a sanitary landfill is not a required service or activity. Thus art 9, §29 does not apply in this case. Therefore, we reverse the judgment of the Court of Appeals.
FACTS
In 1972 Livingston County began operating a sanitary landfill which was licensed pursuant to *638the garbage and refuse disposal act (grda), 1965 PA 87. In January, 1979, the grda was repealed and replaced with the more detailed and comprehensive Solid Waste Management Act (swma). 1978 PA 641, MCL 299.401 et seq.; MSA 13.29(1) et seq. Shortly before the adoption of the swma, the voters, in the election of November, 1978, amended the Michigan Constitution by adopting the Head-lee Amendment, which provides, in part, that the state must appropriate funds for any necessary increased costs associated with "an increase in the level of any activity or service beyond that required by existing law . . . ,”1
In April, 1980, in order to comply with the swma and the rules and regulations promulgated thereunder, Livingston County signed a schedule of compliance with the State Department of Natural Resources. The county then proceeded to upgrade its landfill, undertaking hydrogeological studies and the installation of a leachate collection system and a pvc liner. The county sought reimbursement from the state for the landfill improvements, but the state disavowed any liability. The county then filed suit in the Court of Claims, which found defendant liable for $260,000 expended by plaintiff in upgrading its sanitary landfill.
This Court must conclude that plaintiff has preponderated with the evidence to demonstrate that plaintiff upgraded its facility to comply with new and additional state mandated statutes and requirements under Act 641. . . . This Court further finds that the documented proofs clearly demonstrate that these expenditures totalled $260,000 which would not have been required had defen*639dant not required compliance with Act 641. [Emphasis added.]
The Court of Appeals, in a per curiam opinion filed May 1, 1986, affirmed the Court of Claims decision, relying on two earlier Court of Appeals cases involving facts nearly identical to those in this case.2
We granted leave and now reverse the judgment of the Court of Appeals.3
ANALYSIS
I
This case involves an interpretation of the Solid Waste Management Act and Const 1963, art 9, § 29, a provision of the Headlee Amendment. Art 9, § 29 provides as follows:_
*640The state is hereby prohibited from reducing the state financed proportion of the necessary costs of any existing activity or service required of units of Local Government by state law. A new activity or service or an increase in the level of any activity or service beyond that required by existing law shall not be required by the legislature or any state agency of units of Local Government, unless a state appropriation is made and disbursed to pay the unit of Local Government for any necessary increased costs. The provision of this section shall not apply to costs incurred pursuant to Article VI, Section 18. [Const 1963, art 9, §29. Emphasis added.]
The first issue critical to the resolution of this case is whether the second sentence of art 9, §29 applies to increases in the level of all services and activities, whether optional or required, that are carried on by units of local government or only to increases in the level of those services and activities that are required by state law. The argument made by amicus curiae for the Michigan Municipal League and the Michigan Townships Association goes to the heart of this issue.
The Headlee Amendment states that a "new activity or service . . . shall not be required by the legislature or a state agency” and it states that "an increase in the level of any activity or service beyond that required by existing law shall not be required by the legislature or any state agency . . . .” Mich Const 1963, art 9, §29 (emphasis supplied). There is no qualification in the Headlee Amendment that the local governmental activity or service being increased by the state be a service or activity that is required to be performed by the local government. The Headlee trigger for state funding is a rise in the level of any local service, even an optional one, beyond the level required as of the Headlee effective date. The *641phrase "that required” refers to the "level” of "any activity or service” .... It is not the service that need be "required” under Headlee, but only the level. [Emphasis in original.]
The Court of Appeals in this case, as in Delta Co v Dep’t of Natural Resources, 118 Mich App 458; 325 NW2d 455 (1982), 414 Mich 954 (1982), and South Haven Twp v Dep’t of Natural Resources, 132 Mich App 222; 346 NW2d 923 (1984), did not reach this issue. Instead, the Court found that the unit of local government was, in effect, required by the overall command of the swma to maintain its sanitary landfill, once undertaken.
We have dealt with art 9, § 29, a relatively new provision of the constitution, on only one occasion, in Durant v State Bd of Ed, 424 Mich 364; 381 NW2d 662 (1985). While Durant is not on point, we did expound upon the scope and purpose of the Headlee Amendment. We explained that in ratifying Headlee the voters sought
to gain more control over their own level of taxing and over the expenditures of the state. It is evident that while the voters were concerned about the general level of state taxation, they were also concerned with ensuring control of local funding and taxation by the people most affected, the local taxpayers. The Headlee Amendment [was] the voters’ effort to link funding, taxes, and control. [Id., p 383.]
We also concluded that the Headlee Amendment was "part of a nationwide 'taxpayer revolt’ in which taxpayers were attempting to limit legislative expansion of requirements placed on local government . . . .” Id., p 378 (emphasis added).
In interpreting art 9, § 29, two basic rules of constitutional construction appear applicable.
*642The primary rule is the rule of "common understanding” described by Justice Cooley:
"A constitution is made for the people and by the people. The interpretation that should be given it is that which reasonable minds, the great mass of the people themselves, would give it. 'For as the Constitution does not derive its force from the convention which framed, but from the people who ratified it, the intent to be arrived at is that of the people, and it is not to be supposed that they have looked for any dark or abstruse meaning in the words employed, but rather that they have accepted them in the sense most obvious to the common understanding . . . .’ (Cooley’s Const Lim 81).” . . .
A second rule is that to clarify meaning, the circumstances surrounding the adoption of a constitutional provision and the purpose sought to be accomplished may be considered. [Traverse City School Dist v Attorney General, 384 Mich 390, 405; 185 NW2d 9 (1971). Emphasis in original.]
Unfortunately, application of these two rules of constitutional construction could produce contrary results. While an examination of the purpose of the Headlee Amendment and the circumstances surrounding its adoption indicate that the voters intended art 9, § 29 to apply only to required and not optional activities, it is argued, that a literal reading of the second clause of the second sentence of art 9, §29 seems to support the position of amicus curiae. The clause "beyond that required by existing law,” it is argued modifies the term "level,” not "activity or service.” This suggests that the Headlee Amendment would apply whenever the state increased the level of any activity, whether optional or required, above the level required at the time of the amendment’s enactment.
While amicus curiae makes a plausible argu*643ment from a grammatical standpoint, we must examine the language of a constitutional provision not only in a strictly grammatical context but also in light of the general purpose for which the provision was adopted.
The primary and fundamental rule of constitutional or statutory construction is that the Court’s duty is to ascertain the purpose and intent as expressed in the constitutional or legislative provision in question. Also, while intent must be inferred from the language used, it is not the meaning of the particular words only in the abstract or their strictly grammatical construction alone that governs. The words are to be applied to the subject matter and to the general scope of the provision, and they are to be considered in light of the general purpose sought to be accomplished or the evil sought to be remedied by the constitution or statute. [White v Ann Arbor, 406 Mich 554, 562; 281 NW2d 283 (1979). Citation omitted.]
We are persuaded by our understanding of the purpose of the Headlee Amendment, as expressed in its totality, that it was intended to apply only to increases in the level of those services and activities that state law mandates in the first instance. As we said in Durant, the Headlee Amendment was intended to "limit legislative expansion of requirements placed on local government . . . .”
If we examine the language of art 9, § 29 as a whole, we are left with the firm conviction that this provision of the Headlee Amendment applies only to services and activities required of units of local government. The first sentence of art 9, § 29 clearly limits the reduction of the state-financed portion of the necessary costs of any existing activity or service "required” by state law. There is no ambiguity here about whether or not the activity or service is required. Disregarding the *644troubling clause of the second sentence of art 9, § 29, there is also no doubt that a new activity or service cannot be required without state financial support for any necessary increased costs.
Section 29 then at least makes clear its intent to prohibit either the withdrawal of support where already given or the introduction of new obligations without accompanying appropriations, and, in both instances, art 9, §29 applies only to services or activities required by state law. The question then is why would the drafters or the voters limit the prohibition against the withdrawal of support to "required” activities or services in sentence one, and at the same time, in sentence two, prohibit the unfinanced expansion of an optional activity? Such an interpretation creates a flaw in the logic of the Headlee Amendment’s overall plan.
That plan is quite obvious. Having placed a limit on state spending, it was necessary to keep the state from creating loopholes either by shifting more programs to units of local government without the funds to carry them out, or by reducing the state’s proportion of spending for "required” programs in effect at the time the Headlee Amendment was ratified. The plan clearly does not prohibit the reduction of the "state financed proportion ... of any existing activity or service [not] required ... by state law.”
Yet under amicus curiae’s interpretation plaintiff would be reimbursed for the increased costs allegedly mandated by the swma, but due to the unambiguous language in the first sentence of art 9, § 29, a unit of local government that hypothetically was receiving state aid for a landfill at the time of the adoption of the Headlee Amendment could have that support withdrawn. More specifically, to accept amicus curiae’s interpretation of *645the second clause of the second sentence of art 9, §29 would place that provision in conflict with sentence one. What sentence two would give, sentence one would take away.
Amicus curiae further argues that many essential services of cities and townships, such as fire protection services, are not mandated by state law and that our interpretation of art 9, § 29 would, in effect, defeat the Headlee Amendment by making these units of local government vulnerable to expensive state regulations. We cannot of course anticipate all of the advantages and disadvantages of what we consider to be the plain and most obvious reading of the Headlee Amendment. It does seem, however, that the most fundamental services, such as fire protection, are already being performed in large measure by units of local government. While the state can, and sometimes does, mandate higher standards, benefits, and so forth, it does not necessarily profit from increasing these standards, and, therefore, the kind of escape hatch for the state that the Headlee Amendment was intended to head off is not created. Unlike the shifting of traditional state functions to units of local government, increasing the costs of services that are currently performed predominantly by units of local government does not lessen the state’s financial burden.
Moreover, if we were to accept amicus curiae’s argument that the Headlee Amendment applied to increases in the level of even optional activities or services, any unit of local government that had undertaken an optional activity in the past could pass along to taxpayers statewide the cost of improvements. Units of local government, such as plaintiff county, could look to all state taxpayers for the cost of upgrading a voluntarily assumed, quasi-governmental function, such as a sanitary *646landfill, whereas taxpayers in an adjoining county that used a private landfill would presumably find charges for using their landfill increased because the private landfill owner could not be reimbursed for upgrading his landfill. That unit of government would in turn have to pass off that increased cost to its own tax base, rather than to that of the entire state. Rather than containing the cost and scope of state and local government as indicated by the Headlee Amendment, this result would encourage local units of government to undertake those services and activities previously provided by private enterprise since state taxpayers as a whole, as opposed to local consumers of the service, would pay for any necessary increased costs associated with the increase in the level of that service or activity.
Lending further support to our conclusion that the second clause of the second sentence of art 9, § 29 refers only to required services and activities is the history of the handling of this issue by the Court of Appeals. Although Delta Co and South Haven Twp, the two cases cited by the Court of Appeals for support of its result in this case, do not rest on a resolution of the optional versus required activity issue, both panels indirectly addressed this question. In South Haven Twp, supra, p 226, the Court expressed some skepticism about the notion that the Headlee Amendment applied to increases in the level of even optional services.
In short, the circuit court reasoned that where a local government was engaged in an activity prior to adoption of the Headlee Amendment, regardless of whether that activity itself is required by the state or not, any new requirements imposed by the state to lawfully continue that activity fall within the scope of the Headlee Amendment. We find it unnecessary to so expansively interpret the scope *647of the Headlee Amendment in order to resolve the dispute in the present case. [Emphasis added.]
Moreover, in Delta Co, supra, p 461, the Court of Appeals, without specific reference to this issue, nonetheless, paraphrased art 9, §29 as requiring the state "to provide funds for any new or increased activities or services the localities by law must offer.” (Emphasis added.)
Furthermore, in dicta in Durant v State Bd of Ed (On Remand), 129 Mich App 517, 525-526; 342 NW2d 591 (1983), aff'd in part, rev’d in part, and remanded on other grounds 424 Mich 364; 381 NW2d 662 (1985), yet another panel of the Court of Appeals reached the same conclusion: that art 9, § 29 only applied to increases in the level of required services or activities.
By specifically enacting § 29, the voters sent two messages to the state Legislature: (1) if the state Legislature required local units of government to provide a certain activity or service and the state was financing a certain portion of the necessary costs of that activity or service, the state could not reduce its share of the necessary costs after §29 became effective, and (2) if the state Legislature wanted to pass a new law or regulation which either required local units of government to provide a new activity or service, or to provide an increased level in an existing required activity or service, the state was required to pay for any resulting increased costs which were necessary for the local unit of government to discharge its duty. [Emphasis added.]
Finally, in Saginaw Firefighters Ass’n v Saginaw, 137 Mich App 625; 357 NW2d 908 (1984), the Court of Appeals dealt with a claim by Saginaw fire fighters against the city for overtime pay pursuant to a newly enacted provision of the state *648minimum wage law that required overtime pay for municipal fire fighters. The city defended against the action, in part, on the grounds that the statute was unenforceable because the Legislature had failed, as required by the Headlee Amendment, to appropriate funds for any necessary increased costs incurred in paying overtime compensation. The Court of Appeals, without further analysis, rejected the city’s argument.
Const 1963, art 9, § 29, sets restrictions on the state’s power to increase costs to local governmental units for activities or services required by state law. This constitutional provision was not violated because state law does not require that fire protection be provided by a municipal corporation. [Id., p 630. Emphasis added. Citation omitted.]
Implicit in this conclusion was the Court’s assumption that art 9, § 29 only applied to required, not optional, activities or services.4
In conclusion, we hold that art 9, § 29 applies only to increases in the level of any service or activity required by state law. Viewed in its entirety, the language of art 9, §29 supports this conclusion. Moreover, both the purpose behind and the circumstances surrounding adoption of the Headlee Amendment, as well as dicta from several Court of Appeals decisions, indicate that the language "an increase in the level of any activity or service” in art 9, § 29 refers only to required, not optional, services or activities._
*649II
The second issue necessary to the resolution of this case is whether the swma, in effect, required Livingston County to continue to operate and, therefore, to upgrade its sanitary landfill. Plaintiff county concedes that the swma does not require counties to own and operate sanitary landfills.5 Livingston County argues, however, that §24 of the swma imposes on units of local government a mandatory duty, not required under the grda, to dispose of solid waste. Section 24 of the swma provides as follows:
A municipality or county shall assure that all solid waste is removed from the site of generation, frequently enough to protect the public health, and are [sic] delivered to licensed solid waste disposal areas, except waste which is permitted by state law or rules promulgated by the department, to be disposed of at the site of generation. [MCL 299.424; MSA 13.29(24). Emphasis added.]
As previously noted, the Court of Appeals in this case rested its affirmance of the trial court on Delta Co and South Haven Twp, two cases that also dealt with the interaction between § 24 of the swma and Const 1963, art 9, § 29. In both cases the plaintiff local governments claimed that art 9, § 29 precluded the state from forcing units of local government to comply with the provisions of the swma absent an appropriation for any necessary increased costs associated with compliance.
In Delta Co, the Court of Appeals affirmed the trial court’s judgment which precluded enforcement of the provisions of the swma absent state *650funding as required by the Headlee Amendment. The Court, by construing the "shall assure” language of § 24, concluded that the swma imposed upon units of local government a mandatory duty of solid waste disposal not previously required under state law.
Uniformly, this Court has held that the word "shall” is mandatory. See State Highway Comm v Vanderkloot, 392 Mich 159; 220 NW2d 416 (1974). Moreover, a statute must be read in its entirety. . . . Upon review of the entire act, we are convinced that the words "shall assure” are the equivalent to a command to localities to dispose of solid waste products. The overall purpose of the act is to require localities to develop a solid waste management plan. See MCL 299.425-299.430; MSA 13.29(25)-13.29(30).
The next inquiry becomes: Did units of local government have mandatory duties with respect to solid waste management prior to the adoption of the Solid Waste Management Act?
We summarily reject defendant’s argument that plaintiffs had a pre-existing constitutional duty to dispose of solid waste. . . .
[Moreover], as defendant conceded, the prior act [the grda] imposed no mandatory duties upon the local units of government with respect to solid waste management.
[Finally,] 1980 AC, R 325.2721(4) cannot be viewed as imposing a valid pre-existing duty on municipalities equivalent to the regulations now sought to be enforced. The reliance on the rule to avoid the purview of the Headlee Amendment is misplaced. The duties under the Solid Waste Management Act clearly are "new or increased.” [Id., pp 462-463, 465-466. Emphasis added.]
In South Haven Twp, the Court of Appeals once again tackled the issues raised by the interaction *651of the language in the swma and the second sentence of art 9, § 29. The Court concluded that the Headlee Amendment mandated state funding for new, post-Headlee requirements which the dnr sought to impose on the township pursuant to the swma. As in Delta Co, the Court found that §24 imposed on units of local government a new duty to assure the disposal of solid waste.
We agree with the holding in Delta County v Dep’t of Natural Resources, 118 Mich App 458; 325 NW2d 455 (1982), lv den 414 Mich 954 (1982), that § 24 imposes upon municipalities a new duty to take steps necessary to assure the proper disposal of solid waste. We reject as contrary to the plain language of the statute [the dnr’s] contention that § 24 does not impose any such duty.
The record in the present case reflects that petitioner’s operation of its landfill, while initially voluntarily undertaken under the predecessor statute, is now required to satisfy its duty under § 24 of the Solid Waste Management Act. Consequently, any new, post-Headlee requirements for licensure imposed under the Solid Waste Management Act, i.e., requirements which did not exist under the pre-Headlee predecessor statute or rules promulgated thereunder, constitute state laws requiring an increased level of activity by petitioner, and thus may not be enforced by defendant unless petitioner is provided with state funds to cover any necessary increased costs. Delta County, supra; Const 1963, art 9, §§ 25, 29. [South Haven Twp, supra, 227.]
We assume, for the sake of argument, that the Court of Appeals in Delta Co and South Haven Twp was correct in stating that §24 "imposes ... a new duty to take steps necessary to assure the proper disposal of solid waste.” However, we disagree with the conclusion in those cases, as well as in this case, that the perceived need for the *652availability of a waste disposal site can be translated into an obligation on the part of the state to reimburse a local unit of government for some of the costs involved in the ownership of a disposal site.
If § 24 clearly places upon a county the responsibility to ensure that "all solid waste is removed from the site of generation . . . and . . . delivered to licensed solid waste disposal areas,” the state presumably would be required to reimburse for the cost of that which is required. But as plaintiffappellee concedes, § 24 clearly does not require the ownership or operation of a waste disposal site. It is important to note that plaintiff county has not, to our knowledge, sought reimbursement of the costs of collecting, transporting, or disposing of solid waste. Rather, the county claims that it "is both required to operate the landfill and required to increase the level of activity or service required for that operation”; accordingly, it seeks not the cost of disposing of solid waste, but the cost of upgrading its landfill irrespective of the cost of waste disposal. This claim is based on the fact that, since plaintiff owns the only licensed landfill in the county, the mandates of § 24 mean that it either must comply with the upgrading of its landfill pursuant to other sections of the act or be in violation of the mandate of § 24 to "assure” the disposal of solid waste.
While the record does not indicate the degree of difficulty plaintiff would encounter in disposing of solid waste if it did not continue the operation of its landfill,6 we have no reason to gainsay the fact that its continued operation would be beneficial. We also do not doubt that the alleged newly *653mandated requirements for the operation of the landfill would add to the cost of disposing of waste. However, the $260,000 cost of the landfill improvements arrived at by the trial court is part of the cost of the ownership of the landfill, not the cost of its use. It is the latter that, arguendo, is mandated, not the former.
The heightened requirements for the licensure of a disposal area were not directed solely to public owners. To the contrary, the statute encourages, as a matter of policy, the continued operation of privately owned landfills.7 It is a regulatory measure, like many others passed by the Legislature, that applies new technology to everyday activities in the private and public sector.
Under the holding of the court below, the added costs of regulating the many optional services of government would have to be accompanied by an appropriation, if it could be shown to be related to the carrying out of a required service or activity, before that increased regulatory cost is translated into the recoverable cost of that required service or activity. We do not think this complies with either the express language of art 9, §29, or its overall intended purpose.
CONCLUSION
We therefore find no liability on the part of the defendants to compensate the plaintiff for any *654increased costs attributed to the ownership of its sanitary landfill. Reversed.
Riley, C.J., and Boyle, Archer, and Griffin, JJ., concurred with Brickley, J. Cavanagh, J., concurred only in the result.The parties have not raised and we therefore do not address the issue whether higher standards for the maintenance of a landfill amount to "an increase in the level” of an activity or service.
See Delta Co v Dep’t of Natural Resources, 118 Mich App 458; 325 NW2d 455 (1982), lv den 414 Mich 954 (1982); South Haven Twp v Dep’t of Natural Resources, 132 Mich App 222; 346 NW2d 923 (1984), remanded for reconsideration 425 Mich 854 (1986).
We granted leave, 428 Mich 857 (1987), limited to the following four issues:
I. Whether the County of Livingston is required to operate a sanitary landfill and therefore entitled to complain of new standards under Const 1963, art 9, § 29; whether the Solid Waste Management Act, MCL 299.401 et seq.; MSA 13.29(1) et seq., is an impermissible attempt to shift responsibility for services to local government as defined by Durant v State Bd of Ed, 424 Mich 364; 381 NW2d 662 (1985);
II. Whether the standards expressed in 1978 PA 641 merely particularize standards imposed upon any person, entity, or unit of government operating a landfill by 1965 PA 87 and the Michigan Environmental Protection Act;
III. Whether those standards were enforced before adoption of Const 1963, art 9, § 29; and,
IV. Whether the act implementing Const 1963, art 9, § 29, 1979 PA 101, MCL 21.231 et seq.; MSA 5.3194(601) et seq., clearly indicates that statutes such as 1978 PA 641 were not meant to come within the purview of the Headlee Amendment.
Since we resolve this case on the basis of issue i, we do not reach issues h, m and rv.
While the Court of Appeals in Saginaw Fireñghters did not specifically so state, the requirement for overtime pay did not involve the first sentence of art 9, § 29 and arguably could not have involved "[a] new activity or service” under the second sentence of art 9, § 29. Therefore, the Court could only have been referring to an increase in the "level of any activity or service” under the second clause of the second sentence of art 9, § 29.
The swma certainly does not restrict the operation of sanitary landfills to units of local government, such as counties. See MCL 299.405(3), 299.410, 299.413; MSA 13.29(5)(3), 13.29(10), 13.29(13).
Note that the Court of Claims resolved the question of defendants’ liability on the basis of a motion for partial summary judgment.
Section 35 of the swma evidences a legislative intent to encourage the continued participation of the private sector in the solid waste disposal and transportation business. Section 35 provides as follows:
This act is not intended to prohibit the continuation of the private sector from doing business in solid waste disposal and transportation. This act is intended to encourage the continuation of the private sector in the solid waste disposal and transportation business when in compliance with the minimum requirements of this act. [MCL 299.435; MSA 13.29(35).]