¶1 — Our state constitution sets forth the blueprint for the structure of our state government. Central to that structure is the sovereignty of the people of the state of Washington because “[a] 11 political power is inherent in the people, and governments derive their just powers from the consent of the governed, and are established to protect and maintain individual rights.” Const, art. I, § 1; see also Const, art. II, § 1; Paget v. Logan, 78 Wn.2d 349, 352, 474 P.2d 247 (1970).
Chambers, J.¶2 The people of the State are sovereign. Local subdivisions, like King County, are subject to that greater sover*168eignty and must act within it. But within that constraint, counties and their citizens have considerable latitude to rule and regulate themselves. See Const, art. II, § 1; Henry v. Thorne, 92 Wn.2d 878, 881, 602 P.2d 354 (1979). This may include the power to revoke county ordinances by referendum. See, e.g., King County Charter (KCC) § 230.40.
f 3 When the people of the State require action from a local legislature or executive body, those actions are not subject to a veto via a referendum. Henry, 92 Wn.2d at 881. This follows from the blueprint, from the very structure of government established by our state constitution. It would violate the constitutional blueprint to allow a subdivision of the State to frustrate the mandates of the people of the State as a whole. Id.; see also Whatcom County v. Brisbane, 125 Wn.2d 345, 884 P.2d 1326 (1994).
¶4 The electorate also plays a vital role in checking the exercise of power by elected officials through the initiative and referendum process, both at a State and local level. See, e.g., Const, art. II, § 1. But the people of the State as a whole are the proper electorate to check the legislative action at issue in these cases — by way of a statewide vote on that underlying legislation.
¶5 Today, we are asked to decide whether county ordinances enacted under detailed procedures established by the state Growth Management Act (GMA), chapter 36.70A RCW, to designate and protect critical areas are subject to a veto by a local vote. More than a decade ago, this court substantially answered that question. Brisbane, 125 Wn.2d 345. There, we concluded that GMA ordinances, at least those relating to critical areas, are not subject to referenda.
¶6 We reached that decision on several grounds, including the fact that the county was required by the State to designate and protect critical areas and that the State had established elaborate procedures for public participation that were inconsistent with local up and down votes. The petitioners ask us to revisit and overrule Brisbane. We decline to do so.
*169¶7 We are sympathetic to the critical importance of local government participation and public participation in land use planning. But it is for the legislature to establish any additional role county voters should play in this process or for the voters of the State to amend the GMA via a statewide process under article II, section 1 of our state constitution. If ordinances adopted pursuant to these state mandates are to be subject to local referenda, the state legislature must include the procedure in the underlying statutory schema. Accordingly we affirm the trial court.
BACKGROUND
¶8 Washington State adopted the GMA in 1990. Laws of 1990, 1st Ex. Sess., ch. 17. Among other things, the GMA requires certain localities to plan their growth, protect the environment, protect the property rights of individuals, and designate and protect “critical areas.” RCW 36.70A.020, .060; see also WAC 365-190-040 (setting forth specific procedures). Critical areas include wetlands, areas that recharge aquifers used for potable water, fish and wildlife habitat conservation areas, areas that are frequently flooded, and areas that are geologically hazardous. RCW 36.70A.030(5).
¶9 A major component of the GMA is coordinated, countywide planning to further the statutory mandates. The responsibility for that planning falls primarily upon the individual counties that plan under the GMA’s directives. RCW 36.70A.040, .070, .210. The legislature has specifically required counties to develop their comprehensive plans according to procedures that require an enormous degree of public participation. RCW 36.70A.172; WAC 365-190-040; WAC 365-195-900 through -925.
¶10 Planning is not a one time thing. King County originally adopted its Growth Management Comprehensive Plan in 1994. See King County Dep’t of Dev. & Envtl. Servs., http://www.metrokc.gov/DDES/gmpc/index.shtm (last visited Dec. 18, 2006). King County is required to review and, *170if needed, revise its comprehensive plan and implementing ordinances every seven years, most recently by December 1, 2004. RCW 36.70A.130(4)(a). Since Kang County originally began planning under the GMA, and since it promulgated its first comprehensive plan, the legislature has added additional substantive requirements, including the explicit direction to use the “best available science” in planning. Laws of 1995, ch. 347, § 105, codified as RCW 36.70A. 172(1).
fll King County’s review process that produced the regulations at issue today took about four years and involved prepublication of proposed regulations, formal public comment, six public meetings, peer review by scientists, republication of proposed regulations with an opportunity for more formal public comment, seven more public meetings, King County Council committee review (including 11 committee meetings), and full King County Council consideration, along with some number of additional public meetings. Clerk’s Papers (CP) at 13-60, 63-78, 81-87,131-34; see also King County Ordinance (KCO) 15051(2)(a) (Statement of Facts).
¶12 The regulations at issue today emerged from this process. KCO 15051 explicitly designates and regulates critical areas and amends the zoning code in unincorporated King County. KCO 15052 regulates storm water, and KCO 15053 regulates clearing and grading. Together, these ordinances are nearly 400 pages long. The county’s statement of facts included in the enacted ordinances reflects its conclusion that KCO 15052 and 15053 are necessary to protect critical areas.1 If a challenge to the regulations has *171been timely filed as provided by RCW 36.70A.290, it is not reflected in the very limited record.
¶13 One month after these ordinances were enacted, Rodney McFarland initiated the process to hold referenda upon them. An advocacy group, 1000 Friends of Washington, later joined by King County (which has largely taken over the prosecution of this case), filed a declaratory judgment action, contending that these ordinances were not subject to referenda. After a contested hearing, the trial judge granted summary judgment in favor of the county.2
¶14 McFarland sought and we granted direct review. The attorney general and the Pacific Legal Foundation filed amicus briefs in support of McFarland. The Association of Washington Cities; the Master Builders Association of King and Snohomish Counties; the Washington Environmental Council; and the Washington State Department of Community, Trade, and Economic Development (the state agency responsible for overseeing implementation of the GMA) have filed amicus briefs in support of King County.3
*172ANALYSIS
A. Brisbane
¶15 Our review is de novo. Lybbert v. Grant County, 141 Wn.2d 29, 34, 1 P.3d 1124 (2000). When the text of the statute is clear, we need go no further to interpret it. Dep’t of Ecology v. Campbell & Gwinn, LLC, 146 Wn.2d 1, 11-12, 43 P.3d 4 (2002). However, even when the text is not ambiguous, we will consider all that the legislative body has said on the subject. Id.
¶16 Our task today is to determine whether the legislature intended to create broad state policy to be implemented by counties when it enacted the GMA or whether it simply intended to authorize municipalities to take some action. See generally Henry, 92 Wn.2d 878. How to make this sort of determination has long been a vexing problem. Clear statutory language is often absent, as legislation tends to focus on the substance of the field being legislated upon and not on how the legislation fits within the larger constitutional structure of government. See generally Philip A. Trautman, Initiative and Referendum in Washington: A Survey, 49 Wash. L. Rev. 55, 82-83 (1973). Complicating things, the GMA itself is not a model of consistent clarity. See generally Quadrant Corp. v. Cent. Puget Sound Growth Mgmt. Hearings Bd., 154 Wn.2d 224, 231-33, 110 P.3d 1132 (2005).
¶17 We will begin by reviewing the governing principles. We will then turn to whether this court misapplied those principles in Brisbane and whether that case should be overruled. Again, the people of this State are sovereign, and among the essential attributes of their sovereignty is the power to hold statewide referendum on certain legislative acts. Const, art. I, § 1; art. II, § 1; Paget, 78 Wn.2d at 352. Many home rule charters also grant this right to county *173residents. See, e.g., KCC § 230.40; see generally Trautman, supra, 49 Wash. L. Rev. at 82-83.
¶18 The sovereignty of the people of individual localities gives way to the people of the State’s greater sovereignty, as expressed in the state constitution, through their representatives in the Washington State Legislature, and by the people through statewide legislative acts. See Const, art. II, § 4; Seattle Bldg. & Constr. Trades Council v. City of Seattle, 94 Wn.2d 740, 747, 750, 620 P.2d 82 (1980) (“While the inhabitants of a municipality may enact legislation governing local affairs, they cannot enact legislation which conflicts with state law.”). “ ‘The fundamental proposition which underlies the powers of municipal corporations is the subordination of such bodies to the supremacy of the legislature.’ ” Id. at 747 (quoting Philip A. Trautman, Legislative Control of Municipal Corporations in Washington, 38 Wash. L. Rev. 743 (1963)).
¶19 Within these overarching structural constitutional constraints, localities have considerable power to “ ‘conduct their purely local affairs without supervision by the State, so long as they abide [ ] by the provisions of the constitution and [do] not run counter to considerations of public policy of broad concern, expressed in general laws.’ ” Henry, 92 Wn.2d at 881 (quoting State ex rel. Carroll v. King County, 78 Wn.2d 452, 457-58, 474 P.2d 877 (1970)).
¶20 It is long established that when the state legislature directs a county legislative body to take some implementing action, that action is not subject to referenda at the county level, notwithstanding what the county charter would otherwise authorize. “A general law enacted by the legislature is superior to, and supersedes, all charter provisions inconsistent therewith. Any charter provision, therefore, which has the effect of limiting or restricting a legislative grant of power to the legislative authority or other officer of a city is invalid.” Neils v. City of Seattle, 185 Wash. 269, 276, 53 P.2d 848 (1936) (citations omitted). Put another way, the voters of the county cannot alter a grant of *174authority to, or the imposition of responsibility onto, the local government by the state legislature.4
¶21 Thus, when the state legislature instructs a local governmental body to implement state policy, the power and duty is vested in the legislative (or executive entity), not the municipality as a “corporate” entity. Id.; see also State ex rel. Guthrie v. City of Richland, 80 Wn.2d 382, 384, 386, 494 P.2d 990 (1972) (when statute authorized authorities to “proceed forthwith,” local referendum would be inconsistent with statutory grant of power). For example, zoning ordinances and regulations are beyond the power of initiative or referendum in Washington because the power and responsibility to implement zoning was given to the legislative bodies of municipalities, not to the municipality \ as a whole. Lince v. City of Bremerton, 25 Wn. App. 309, 312-13, 607 P.2d 329 (1980) (citing Leonard v. City of Bothell, 87 Wn.2d 847, 854, 557 P.2d 1306 (1976)); see generally J.R. Kemper, Annotation, Adoption of Zoning Ordinance or Amendment Thereto as Subject of Referendum, 72 A.L.R.3d 1030 (1976) (surveying cases). Therefore, initiatives or referenda that attempt to graft limits onto a grant of power by the people of the State, or to modify obligations imposed on local legislative or executive authority by the people of the State, are invalid as in conflict with state law. State ex rel. Haas v. Pomeroy, 50 Wn.2d 23, 25, 308 P.2d 684 (1957) (collecting cases), overruled in part by Earle M. Jorgensen Co. v. City of Seattle, 99 Wn.2d 861, 665 P.2d 1328 (1983). Courts will exercise their inherent power to keep such matters from the ballot. See, e.g., id. at 25.
¶22 The GMA is a clear example of legislation that creates public policy to be implemented in large part at the local level, by representatives more attuned to the individual needs, wants, and characteristics of their areas. In Snohomish County v. Anderson, 123 Wn.2d 151, 154, 157, 868 P.2d 116 (1994), we found the legislature’s intent to *175create broad state policy to be implemented by local governments clear; thus a proposed referendum on an ordinance adopting procedures to develop a countywide planning policy was barred, in part, because the GMA explicitly instructed the county legislative body to take that action.
¶23 Sometimes, the legislative intent is fairly clear, as it was in Anderson. But sometimes, the legislative intent must be gleaned from the statutory schema as a whole. Cf. Campbell & Gwinn, 146 Wn.2d at 11-12. For example, in Brisbane, 125 Wn.2d 345, this court took a broader look at the GMA and concluded that, as a whole, the legislature did not intend county implementation of GMA policies to be subject to referenda, at least in the context of the critical area ordinance presented. The court held:
The purpose of the Growth Management Act, RCW 36.70A, would be frustrated if the people of Whatcom County were permitted by referendum to amend an ordinance adopted to implement the goals of a comprehensive land use plan. Under Anderson, “[permitting the referendum would jeopardize [the] entire state plan [as intended by the Growth Management Act] and thus would extend beyond a matter of local concern.” One consequence of such a broad interpretation of the referendum power includes the potential repeal of ordinances required by the Legislature to be enacted for statewide growth management. Also, it would be difficult to balance the various interests contemplated by the Legislature.
Brisbane, 125 Wn.2d at 351 (alterations in original) (footnote omitted) (quoting Anderson, 123 Wn.2d at 159). In reaching the decision that the legislature did not intend to grant the power and duty to implement to the county as a corporate entity, the court relied upon the specific and repeated delegation of power and duty to municipal legislative authorities in the GMA. E.g., RCW 36.70A.040, .130(l)(a); see also generally ch. 36.70 RCW (the Planning Enabling Act, explicitly delegating to the board of county commissioners power to adopt “official controls” on planning, e.g., RCW 36.70.550-.660). We also considered the specific mechanisms of GMA implementation and enforce*176ment and noted that the legislature required municipalities to follow careful procedures (which often take many years) that required extensive notice and opportunity to comment and required the sort of recursive give and take that was inconsistent with up and down votes. Brisbane, 125 Wn.2d at 350-51 (citing Anderson, 123 Wn.2d at 156). Finally, we considered the absence of any mention of referenda in the extensive and detailed provision for public participation and public appeal, and concluded that absence was strong evidence of a legislative desire to vest the power and responsibility in the local legislative authority. Id. at 351-52 (citing Anderson, 123 Wn.2d at 157). There were textual, structural, and policy reasons for our holding that day.
¶24 We turn now to McFarland’s call to overrule Brisbane. Before it may be overruled, it must be shown to be both incorrect and harmful. State v. Berlin, 133 Wn.2d 541, 547-48, 947 P.2d 700 (1997). We first consider whether Brisbane was incorrect. We conclude it was not.
¶25 Again, Brisbane was based on a textual, structural, and policy reading of the entire GMA. See, e.g., Brisbane, 125 Wn.2d at 351. McFarland argues, essentially, that this methodology was incorrect and, instead, the court should have focused on the individual components of the GMA that most directly applied to the municipality’s specific obligations discharged by the ordinance. Under that approach, critical areas ordinances might be subject to referenda because RCW 36.70A.060(2) directs that “[e]ach county and city shall adopt development regulations,” rather than saying that “the legislative authority in each county or city” shall adopt development regulations. Since, he contends, the legislature signals that it does not wish ordinances to be subject to referendum by delegating the power to “the legislative authority,” Brisbane must be incorrect.
¶26 But this laser focus on the words “legislative authority” fails to take into account that all legislation fits within larger legislative and constitutional systems. Even the statute considered in Anderson (a case the challengers *177quite properly praise) makes it clear that the legislature may use the phrase “legislative authority” and “county” interchangeably. Anderson, 123 Wn.2d at 156-57 (citing RCW 36.70A.210). The statute at issue in that case said, among other things, “[t]he legislative authority . . . shall adopt a county-wide planning policy. . . [i]f a county fails for any reason to convene a meeting. . . .” RCW 36.70A.210(2)(c) (emphasis added). Nonetheless, Anderson found that ordinances passed relating to this act were not subject to referenda, and read in the larger context of the law, this holding drew not merely on the words but on the structure established by the statutory system within the greater constitutional one. Anderson, 123 Wn.2d at 156; accord RCW 36.70A.030(7), .035, .040, .290.
¶27 As Professor Trautman noted:
One wonders whether the state legislature in delegating certain powers to local governments is very often thinking of the initiative and referendum when it authorizes the “city council” or the “legislative body” rather than the “city” to do something, or whether the particular choice of words is happenstance. One wonders whether the legislature is not more likely concerned with the subject matter of the particular legislation and the felt need for delegation of authority to the local level without thinking about who at the local level should exercise the power. . . .
If, in reality, the legislature did intend that only the municipal legislative body should have power in a particular instance, that must control. The danger, of course, is that the wording in the statute will be taken at face value and will substitute for reasoning in the particular instance.
Trautman, supra, 49 Wash. L. Rev. at 83 (footnotes omitted).
f 28 We agree. Reasoning is required. We also note that the phrase “legislative authority” does not have a monolithic meaning in our case law but, rather, has long depended on the context and purpose. In State ex rel. Linn v. Superior Court, 20 Wn.2d 138, 155, 146 P.2d 543 (1944), for example, this court held that the “legislative authority” of a county could include the people acting in a legislative *178capacity and proposing an initiative, and thus the people were bound by the procedures laid down in the state constitution for the “legislative authority” when attempting to amend a municipal charter. Id. Again, the entire statutory schema must be read with care to determine the intent of the legislature.
¶29 Furthermore, Anderson, perhaps with Professor Trautman’s injunction in mind, seemed to contemplate a case like Brisbane arising. The court went beyond merely reading the statutory language to note, for instance, that “the statute directs the legislative authority’ to convene meetings and establish processes. These responsibilities cannot be performed by the exercise of a ‘yes/no’ vote.” Anderson, 123 Wn.2d at 156. This goes beyond the text of the statute to consider the broader structural implications of a contrary ruling. These structural implications still remain.
¶30 Therefore, we disagree that prior to Brisbane, the legislature consistently signaled its intent to create general state policy to be implemented locally by delegating power to “the legislative authority of a county” as opposed to “the county” as a corporate body. Instead, that language is simply one of many tools that this court has used to determine relevant legislative intent.5
¶31 Brisbane also accords with other decisions that turned on the structure of the systems established by a statutory schema. In Seattle Building & Construction Trades Council, 94 Wn.2d at 747, 750, for example, we did *179not rely on any explicit grant of authority to a local legislative body in determining that the city of Seattle’s approval of the final plan for Interstate 90 (1-90) was not subject to a local vote. Instead, the court looked broadly at the statutes and history of the 1-90 expansion to conclude that the legislature intended that the city’s approval was a matter for the city municipal authorities. See id. at 741-45, 747-50. Among the many specific reasons articulated by the court for its conclusion was the fact that the legislation provided extensive provision for citizen involvement prior to the final decision making. Id. at 747.
¶32 Similarly, here, the GMA has created extensive provision for citizen involvement. RCW 36.70A.020(11), .035, .140. By way of illustration, the public participation, before these three ordinances were enacted, was extensive. They
included a mailing to 115,000 unincorporated area residents at the very start of the public review process .... 13 public meetings attended by 550 people, Web information resources that received more than 6,000 visits, an e-mail list of nearly 200, mailings to those who provided comments, and a stakeholder group with representatives from such diverse interests as environmental groups, builders and realtors, agriculture, forestry and rural residents .... Hearings were conducted almost weekly and most hearings allowed for an opportunity for public comment. The King County Council also conducted at least five public meetings in rural areas of King County and heard from hundreds of citizens throughout King County.
CP at 272-74 (Decl. of Harry Reinert). Requiring so much public input into the development of the regulations and the comprehensive plans is itself evidence that the legislature intended to leave the ultimate power in the hands of the legislative body. Accord Seattle Bldg. & Constr. Trades Council, 94 Wn.2d at 747-50.6
*180¶33 Furthermore, as noted by the Master Builders Association in their amicus brief, the current GMA establishes very strict time schedules for challenging ordinances and regulations that a referenda would upset, without any sort of allowance for that possibility. See RCW 36.70A.280.
As a result, property owners and builders have reasonable predictability about the regulations which will govern their land and businesses. Allowing select GMA regulations to be subject to referenda means that property owners will never know at what point they can safely undertake the considerable expense of planning and engineering that is inherent in land development and building processes because they will face the risk that at any time, an interest group of some kind could sponsor an initiative or referendum that would drastically alter their plans.
Amicus Curiae Br. of Master Builders Ass’n of King & Snohomish Counties at 15. This would be inconsistent with the general legislative policy recognized by this court that land use decisions should reach finality quickly. See generally Habitat Watch v. Skagit County, 155 Wn.2d 397, 120 P.3d 56 (2005); James v. Kitsap County, 154 Wn.2d 574, 115 P.3d 286 (2005) (both stressing importance of complying with time limits in the land use context). Additionally, it would put counties at risk of losing eligibility for grants, loans, pledges, or financial guaranties from the State. RCW 36.70A.130.
f 34 By both explicit goal and by structure, the GMA seeks coordinated planning. RCW 36.70A.010 (legislative findings), .130(2)(b) (requiring comprehensive plan propos*181als to be heard by governing body concurrently).7 This court has already concluded that allowing referenda is structurally inconsistent with this mandate, especially since a referendum in many jurisdictions does not merely act as a veto but in some counties can strike individual portions of ordinances. See Brisbane, 125 Wn.2d at 347 (noting that the referendum sought to eliminate parts of an ordinance); cf. Pierce County Charter §§ 5.60, 5.70; Snohomish County Charter §§ 5.60, 7.80; Whatcom County Charter §§ 5.50, 5.60. That is inconsistent with integrated, comprehensive planning.
f 35 Finally, we note that even though reasonable jurists disagreed at the time of Brisbane, legislative acquiescence may also shed light on legislative intent. If the legislature does not register its disapproval of a court opinion, at some point that silence itself is evidence of legislative approval. State v. Coe, 109 Wn.2d 832, 846, 750 P.2d 208 (1988).8
f36 Our legislature has had ample opportunity to inform this court that it wishes ordinances implementing responsibilities under the GMA to be subject to referenda. Despite amending the GMA every year since the publication of Brisbane, despite amending the specific portion of the GMA that Brisbane interpreted multiple times since then, and despite the introduction of specific legislation that would *182have indicated legislative disapproval, it has not elected to do so. See Laws of 2005, ch. 423, § 6; Laws of 2002, ch. 154, § 1; Laws of 2000, ch. 36, § 1; Laws of 1998, ch. 171, §§ 1, 4; H.B. 1823, 54th Leg., Reg. Sess. (Wash. 1995); S.B. 6586, 54th Leg., Reg. Sess. (Wash. 1996). This lack of action is at least some evidence that the legislature believes this court accurately divined its intent.
¶37 Brisbane was well grounded in law. We note that less than a year after its publication, the author of Anderson, Justice Robert F. Utter, signed Brisbane. The absence of specific “magic words” in every statute relevant to the exercise of authority does not create a presumption that the legislature intended local ordinances passed pursuant to state statutes be subject to local referenda. Instead, we must look to the entirety of the statutory schema established by the legislature. Viewed as a whole, the GMA contemplates that public participation will be channeled through its systems. We decline to overrule Brisbane, and any change to the appropriate procedures governing public participation in GMA ordinances must come from the legislature.
B. Applying Brisbane
138 While the parties essentially agree that KCO 15051 is not “referendable” if Brisbane remains (as it does) good law, they are divided on whether KCO 15052 and 15053 fall under it. The proponents of the initiative and two amici believe Brisbane does not apply; the county and the other four amici disagree. The county bears the burden of persuasion because it is the proponent of declaratory relief. E.g., Maleng v. King County Corn Guild, 150 Wn.2d 325, 334, 76 P.3d 727 (2003).
¶39 As amicus Pacific Legal Foundation quite properly notes, if read too broadly, Brisbane could remove all land use regulation from local referendum. Amicus Br. of Pac. Legal Found, at 15. It is not enough that an ordinance is related in some way to the implementation of a comprehen*183sive plan. County ordinances must implement state policy at the direction of the State to be immune from local referenda. In general, those who oppose an election on a referendum will have the burden of showing that the challenged ordinance is necessary to or was passed for the purpose of implementing state policies.
¶40 We hold that whether a specific ordinance is subject to a referendum must be decided on a case by case basis, considering, at the least, the scope of the statutory schema undergirding the ordinance and whether the ordinances were necessary to or passed for the purposes of implementing that statutory scheme. We will show appropriate deference to the expressed intent of the legislative body enacting that ordinance, and if that intent is clear, the challenger must show, by evidence and argument, that in fact the ordinance is outside of the scope of the state statutory schema.9
¶41 First, we turn to the scope of the statutory schema. McFarland argues that KCO 15052 (regulating surface water flows, especially storm waters) and KCO 15053 (regulating clearing and grading) are outside the scope of the GMA and thus not matters of state policy.
¶42 But this is a strained and artificial way to read the countys obligations to protect critical areas. Under the GMA, “[e] ach county. . . shall adopt development regulations that protect critical areas that are required to be designated under RCW 36.70A.170.” RCW 36.70A.060(2) (emphasis added).
¶43 Critical areas that counties must protect include wetlands, areas critical to recharging aquifers used for potable water, areas used for fish and wildlife habitat conservation, areas that are frequently flooded, and areas that are geologically hazardous. RCW 36.70A.030(5). Clearly, critical areas are particularly sensitive to water flows, which *184are regulated by KCO 15052 and 15053. The county concluded that it needed to regulate water flows and developed these ordinances as a part of the protection it is providing to critical areas. The county produced considerable evidence to support its conclusion. See, e.g., CP at 269-75 (Decl. of Harry Reinert, detailing process and need for the regulations). We find it has satisfied its burden.
¶44 Next, we turn to whether the ordinances were necessary to, or passed for the purposes of, implementing the GMA. We note that the three ordinances were developed together, that the county’s statement of facts appended to KCO 15051 specifically discuss the need for storm water and grading regulations to prevent harm to critical areas, and that KCO 15052 and 15053 have been enacted to accomplish that purpose. KCO 15051(3). The county concluded that to accomplish the mandates of the GMA, it must go beyond merely designating critical areas to protecting critical areas, and that means regulating the actual flow of water in and over the land. See, e.g., RCW 36.70A.172G) (“In designating and protecting critical areas . . . , counties . . . shall include the best available science in developing policies and development regulations to protect the functions and values of critical areas.”).
¶45 The record amply demonstrates that these three ordinances were developed together for the explicit purpose of protecting critical areas and that the county reasonably believed these ordinances were necessary to implement the purposes of the GMA. See KCO 15051(l)(a) (Statement of Facts); KCO 15051(3) (explaining the interplay of these three ordinances); CP at 269-75 (Decl. of Harry Reinert, detailing process and need for the regulations); accord City of Seattle v. Yes for Seattle, 122 Wn. App. 382, 387, 390, 93 P.3d 176 (2004) (holding that critical areas ordinances are development ordinances beyond the scope of the people’s power of referendum), review denied, 153 Wn.2d 1020 *185(2005).10 We decline the invitation to remand for further fact finding on this point, without prejudice, of course, to any timely substantive challenge to the ordinances under the Administrative Procedure Act (chapter 34.05 RCW) or RCW 36.70A.290 that may be pending.
¶46 We accordingly hold that King County has established sufficiently that KCO 15052 and 15053 were passed pursuant to the GMA’s requirement that critical areas be designated and protected. RCW 36.70A.040(2), .170 (requiring counties to designate and protect critical areas), .050 (requiring consultation), .060 (establishing procedures), .172 (requiring use of the best available science). Thus, these ordinances implement state policy and are not subject to local referenda.
C. Necessity
¶47 Petitioners make the related argument that only those ordinances that are actually needed to accomplish the goals of the GMA are exempt from referenda. Since, they assert, the county has not shown that they would be out of compliance with the GMA if they merely re-enacted their prior critical areas ordinances, the new ordinances are not “needed” and may be subject to referenda. Alternately, they ask for remand and an opportunity to show, factually, that the ordinances are not necessary.
¶48 This argument stems from the statutory requirement that GMA regulations be regularly reviewed and revised. Again, the GMA provides:
The department [of community, trade, and economic development] shall establish a schedule for counties and cities to take action to review and, if needed, revise their comprehensive plans and development regulations to ensure the plan and regulations comply with the requirements of this chapter. . . [t]he schedule established by the department shall *186provide for the reviews and evaluations to be completed as follows:
(a) On or before December 1, 2004, and every seven years thereafter, for . . . King [County].
RCW 36.70A.130(4)(a) (emphasis added).
¶49 We turn, as we must, to the statutory schema as a whole. Read in context, RCW 36.70A.130 requires that counties continuously review, evaluate, and revise their comprehensive plans in light of the best available science, the experience of the county with the current regulations, the input of the population, and the ever changing needs and realities of the use of land. We note that since 1994, when King County originally adopted its comprehensive plan, the legislature has required that counties use the best available science in designating and protecting critical areas. RCW 36.70A. 172. It has also amended the procedures counties must follow. E.g., RCW 36.70A.040, .060.
¶50 Nowhere in these lengthy statutory procedures is a requirement that the county show that it would be out of compliance with the GMA if it simply refused to improve its approach to land management. Instead, a far more reasonable way to read the statutory schema as a whole is that the process creates (hopefully) ever improving management of growth, in light of all of the different legitimate concerns of the stakeholders in the system. Nor do we find any evidence of legislative intent to treat the original comprehensive plan so differently from revised comprehensive plans. Instead, the continual process of revising management of land is itself an integral part of the structure established by the GMA. The legislature has directed that we show considerable deference to county decision making in this area. RCW 36.70A.320(1), (2) (GMA comprehensive plans and development regulations “are presumed valid upon adoption” and places burden on the challenger to show any action taken *187under the GMA is not in compliance with the requirements of the GMA).11
¶51 Accordingly, we hold that for the purposes of the “referendability” of an ordinance, an ordinance is needed if the county reasonably concludes that it furthers the goals of the GMA, and this court will not second guess that holding without some showing that the decision was arbitrary and capricious.
¶52 Finally, we turn briefly to the argument that since the power to regulate storm water, grading, and clearing is a police power, regulations governing them are not GMA ordinances. But that overlooks that, for the most part, the GMA did not vest the counties with new power, but instead organized and directed the way power was to be exercised. See generally Richard L. Settle & Charles G. Gavigan, The Growth Management Revolution in Washington: Past, Present, and Future, 16 U. Puget Sound L. Rev. 869, 974 (1993). Furthermore, it has long been held that ordinances establishing county zoning are not subject to referenda or initiative because the procedure conflicts with the procedures established by statute. See Save Our State Park v. Bd. of Clallam County Comm’rs, 74 Wn. App. 637, 646, 875 P.2d 673 (1994) (citing cases). The fact that an independent police power exists is not relevant to whether the county was acting pursuant to a statewide policy.12
¶53 We do not find it relevant that the storm water and grading ordinances regulate land outside of critical areas. Water flows are indifferent to such boundaries.
*188CONCLUSION
¶54 We do not take lightly the concerns expressed by McFarland and his supporting amici regarding the vital importance of the rights of local citizens to participate in policy decisions affecting their communities, and we will take a very hard look at any attempt to limit public participation.
¶55 The people of this State, through their legislators, recognized that each local area is unique and placed considerable power and responsibility onto counties to develop comprehensive land use plans according to procedures that required an enormous amount of deliberative public participation. Local exercises of power are often subject to rejection by local referenda. But while the GMA places considerable power and responsibility in local hands, it is still a state power that is being exercised to further state mandates.
¶56 The legislature certainly could decide that local ordinances implementing the GMA should be subject to local referenda. But it is for the legislature, not the courts, to amend GMA procedures. Until such an amendment is enacted, we hew to our holding that ordinances such as these are not subject to local referenda.
¶57 Accordingly, we affirm the trial judge. Attorney fees are denied. King County’s motion to strike McFarland’s statement of additional authorities is denied as moot. See Woodward v. City of Spokane, 51 Wn. App. 900, 908 n.1, 756 P.2d 156 (1988).
Alexander, C.J., and Bridge and Owens, JJ., concur.
The ordinance itself explains the relationship between the critical area ordinances and “other regulations, projects and programs”:
a. King County uses a combination of regulatory and nonregulatory approaches to protect the functions and values of critical areas. Regulatory approaches include low-density zoning in significantly environmentally constrained areas, limits on total impervious surface, stormwater controls and clearing and grading regulations.
*171c. The standards in this critical areas ordinance for protection of wetlands, aquatic areas and wildlife areas work in tandem with landscape-level standards for stormwater management, water quality and clearing and grading;
e. The stormwater ordinance (Ordinance 15052) being adopted in conjunction with this critical areas ordinance ... places a strong emphasis on flow control best management practices that disperse and infiltrate runoff on-site. ...
f. The clearing and grading ordinance (Ordinance 15053) being adopted in conjunction with this critical areas ordinance applies seasonal clearing limits throughout unincorporated King County to help prevent sedimentation of streams and other aquatic areas.. .. Retention of forest cover helps to preserve the ability of soils and forest cover to capture and slowly release or infiltrate rainwater [and] augments the protection provided by buffers for wetlands, aquatic areas, and fish and wildlife conservation areas.
KCO 15051(3).
The transcript of this hearing came to the court stamped “sealed.” After our opinion was released, the trial judge informed us that the transcript had been improperly marked. It is not sealed.
Perhaps because this is not an Administrative Procedure Act (chapter 34.05 RCW) challenge to the substance of the regulations but instead a question of whether the regulations are properly subject to local referenda, the court has not been provided with the administrative record. Our recitation of the facts is taken *172from the record provided, which we recognize is incomplete. Nothing in this opinion should he taken to prejudge any substantive claim either way.
Additionally, administrative ordinances are not legislative acts and thus are not subject to the people’s legislative power of referendum and initiative. See generally Leonard v. City of Bothell, 87 Wn.2d 847, 850, 557 P.2d 1306 (1976); see also Bidwell v. City of Bellevue, 65 Wn. App. 43, 827 P.2d 339 (1992). Neither party argues that these ordinances are administrative.
We note in passing that City of Bellevue v. East Bellevue Community Council, 138 Wn.2d 937, 983 P.2d 602 (1999), is not inconsistent with our holding in Brisbane. East Bellevue merely affirmed that when a state statute gives a community council a veto over a rezone, that community council has that power. Id. at 945. The city of Bellevue had argued that the use of the community council veto brought the city out of compliance with the GMA because the cit/s actual zoning no longer mirrored the zoning provided for in its comprehensive plan, as required by the GMA. This did not invalidate the statutory power of the community council, especially since all that the city had to do to bring its comprehensive plan into accord with the GMA was to amend it to recognize the veto. Id. at 947. East Bellevue merely harmonized statutory grants of power and responsibility with one another; it does not stand for the broader proposition that GMA ordinances are subject to referenda.
We respectfully disagree with the dissent that considering the implication of these provisions means the court today “approves [the] denial of the people’s exercise of their right to check legislative power,” dissent at 191, or that this court holds that the “opportunity for public participation at hearings somehow precludes the right of referendum.” Dissent at 195. In case others are similarly *180misled, we disavow the dissent’s interpretation. The dissent, we fear, confuses the power reserved to the people of the State in article I, section 1, and article II, section 1(b), and the powers and duties of local governing bodies. All branches of government operate within the rule of law, including the decades of case law announced by this court. That case law was succinctly summarized by Justice Charles Johnson’s concurrence. “[W]here the state law requires local government to perform specific acts, those local actions are not subject to local referendum.” Concurrence at 188-89. Our role is to interpret the law within the rule of law, regardless of our personal feelings on the wisdom of the law in question.
The Association of Washington Cities contends that frequently different regulations will all play a role in a comprehensive plan and the repeal of one could bring the municipality out of compliance with the GMA and result in unforeseen effects, such as full scale factories in suburban neighborhoods. See Amicus Curiae Br. of Ass’n of Wash. Cities at 8-10. While this takes us out of the questions presented, the downstream consequences the cities point to do seem to be inconsistent with the stated goals of the GMA.
There has been a question raised as to whether we abandoned or limited the canon of legislative acquiescence in Skagit Surveyors & Engineers, LLC v. Friends of Skagit County, 135 Wn.2d 542, 958 P.2d 962 (1988). We did not. The question in Skagit Surveyors was whether a growth management hearings board (GMHB) had the power to invalidate zoning ordinances enacted prior to the effective date of the GMA. The GMHB split on the subject, and this court ultimately held that the boards did not have such power. Skagit Surveyors considered the role of legislative acquiescence in the context of administrative tribunals, and we merely held that when administrative tribunals are split on a point of law, the legislature is not deemed to have acquiesced to any one of them. Id. at 566.
We note in passing that the overbreadth, if any, of the ordinance beyond the scope of the statutory schema might also, in the proper case, bear on this analysis. But in the absence of facts tending to show that the ordinances are overbroad, the question is not properly before us today.
The supporters of the referenda attempt to distinguish Yes for Seattle on the grounds that Yes for Seattle involved an initiative, not a referendum. We have long rejected attempts to make such distinctions. See, e.g., Guthrie, 80 Wn.2d at 384, 387.
Cf. ROW 36.70A.3201:
Local comprehensive plans and development regulations require counties and cities to balance priorities and options for action in full consideration of local circumstances. The legislature finds that while this chapter requires local planning to take place within a framework of state goals and requirements, the ultimate burden and responsibility for planning, harmonizing the planning goals of this chapter, and implementing a county’s or city’s future rests with that community.
We elect to not reach the remaining contentions as they are not supported by relevant citation to authority. See In re Registration of Elec. Lightwave, Inc., 123 Wn.2d 530, 545, 869 P.2d 1045 (1994) (citing State v. Lord, 117 Wn.2d 829, 822 P.2d 177 (1991)).