cause our past statements have been inconsistent. In
Dressier v. Morrison, 212 Ariz. 279, 281 ¶ 11, 130 P.3d 978, 980 (2006), the Court stated that an order granting a motion to dismiss is reviewed for abuse of discretion, citing
Franzi v. Superior Court, 139 Ariz. 556, 561, 679 P.2d 1043, 1048 (1984).
Franzi, however, involved a criminal proceeding rather than a motion to dismiss a civil pleading under
Rule 12(b)(6). 139 Ariz. at 558, 679 P.2d at 1045.
Dressier, moreover, recognized that issues of law are reviewed de novo. 212 Ariz. at 281 ¶ 11, 130 P.3d at 980.
¶ 8 Dismissal is appropriate under Rule 12(b)(6) only if “as a matter of law [ ] plaintiffs would not be entitled to relief under any interpretation of the facts susceptible of proof.” Fid. Sec. Life Ins. Co. v. State Dep’t of Ins., 191 Ariz. 222, 224 ¶ 4, 954 P.2d 580, 582 (1998). Because questions of law are reviewed de novo, e.g., Wilmot v. Wilmot, 203 Ariz. 565, 569 ¶ 10, 58 P.3d 507, 511 (2002), the grant of a dismissal under Rule 12(b)(6) is reviewed de novo.
¶ 9 “Arizona follows a notice pleading standard.” Cullen v. Auto-Owners Ins. Co., 218 Ariz. 417, 419 ¶ 6, 189 P.3d 344, 346 (2008). In determining if a complaint states a claim on which relief can be granted, courts must assume the truth of all well-pleaded factual allegations and indulge all reasonable inferences from those facts, but mere conclusory statements are insufficient. Id. ¶ 7. “[C]ourts look only to the pleading itself’ when adjudicating a Rule 12(b)(6) motion. Id. If “matters outside the pleading” are considered, the motion must be treated as one for summary judgment. Ariz. R. Civ. P. 12(b)(6). A complaint’s exhibits, or public records regarding matters referenced in a complaint, are not “outside the pleading,” and courts may consider such documents without converting a Rule 12(b)(6) motion into a summary judgment motion. See Strategic Dev. & Constr., Inc. v. 7th & Roosevelt Partners, LLC, 224 Ariz. 60, 63 ¶ 10, 64 ¶ 13, 226 P.3d 1046, 1049-50 (App.2010).
III.
A.
¶ 10 “Tattooing,” as used in this opinion, refers to:
mark[ing]the skin with any indelible design, letter, scroll, figure, symbol or any other mark that is placed by the aid of needles or other instruments upon or under the skin with any substance that will leave color under the skin and that cannot be removed, repaired or reconstructed without a surgical procedure.
A.R.S. § 13-3721(E)(2). Although tattooing has an ancient history and has been practiced in many different cultures, the modern process generally involves electronically powered tattoo machines that move a solid needle up and down to puncture the skin between 50 and 3,000 times per minute, depositing insoluble ink into the skin with each puncture. Anderson, 621 F.3d at 1055. Because the process involves puncturing the skin repeatedly, tattooing carries risks of infection and transmission of disease if done with unsterile equipment or in unsanitary conditions. Id. at 1056. When properly performed, tattooing generally is a safe procedure. Id.
¶ 11 Arizona does not extensively regulate the practice of tattooing. Persons who provide tattoos, referred to as tattoo artists, are not certified, licensed, or registered by the state. State law does, however, bar the use of needles that have not been properly sterilized, the reuse of needles, and the improper disposal of used needles. A.R.S. §§ 13-3721(A)(2), 44-1342. It is also unlawful to tattoo a minor unless the child’s parent or legal guardian is present. Id. § 13-3721(A)(1).
¶ 12 The City of Mesa also imposes few regulations on tattooing. It does not certify, license, or register tattoo artists; nor does it generally regulate the manner in which tattoo parlors operate. Mesa provides that tattoo parlors cannot be within 1,200 feet of a school, another tattoo parlor, or a body piercing salon. Mesa City Code § 11-6-3(B)(2). (This location restriction is not at issue here.) Mesa additionally requires tattoo parlors to obtain a CUP. Id.
¶ 13 Under Mesa’s zoning code, a CUP is a “discretionary authorization” that the City Council may issue if it finds, “through a