Texas Propane Gas Association v. the City of Houston, 622 S.W.3d 791

Texas regulates the liquefied petroleum gas (LPG) industry through the LPG Code and Railroad Commission LP-Gas Safety Rules; §113.054 (2011) states those rules "preempt and supersede" any local ordinance unless the political subdivision obtains the commission executive director’s permission.
In 2016 the City of Houston amended its Fire Code to add Chapter 61 (LPG) and civil penalties of $500–$2,000 per day for violations.
Texas Propane Gas Association (TPGA), a trade association representing LPG industry members, sued Houston for a declaratory judgment that the City’s LPG regulations are preempted by §113.054 and/or by the LP-Gas Safety Rules; TPGA pleaded one unified preemption claim and identified representative examples of enforcement and an injury risk to members.
Trial court denied the City’s plea to the jurisdiction and both parties’ summary‑judgment motions; the City appealed interlocutorily, arguing (1) civil courts lack jurisdiction because the challenged ordinances are penal and thus must be judicially attacked only in defense to prosecution, and (2) TPGA lacks standing to challenge an array of discrete regulations without member‑specific injury to each.
The court of appeals rejected the City’s jurisdiction argument but held TPGA lacked standing to bring a multi‑regulation challenge; the Texas Supreme Court granted review and reversed the court of appeals, remanding for merits proceedings.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Subject‑matter jurisdiction: Can a civil court adjudicate a declaratory preemption challenge to local LPG regulations that carry monetary/criminal penalties?	TPGA: The claim challenges civil preemption under §113.054 and is civil in essence; the penal nature of enforcement is incidental and cannot deny civil review.	Houston: Ordinances are penal; under Morales and related doctrine such challenges belong in criminal courts or only as defenses to prosecutions.	The Court held the dispute is civil in essence (Heckman test); trial court has subject‑matter jurisdiction because the preemption claim primarily concerns civil regulatory authority and threatened irreparable property injury.
Standing: May TPGA sue on a single, industry‑wide preemption claim without proving that a member was injured by each discrete city regulation TPGA challenges?	TPGA: It pleads one unified preemption claim and alleges actual and imminent industry‑wide injury from inconsistent local rules and specific enforcement examples; this satisfies the injury requirement.	Houston: Standing must be analyzed claim‑by‑claim; TPGA must show at least one member is injured by each discrete regulation challenged.	The Court held TPGA has standing to pursue its single preemption claim; its pleadings, read liberally, allege actual and imminent injury sufficient to proceed.

City of Laredo v. Laredo Merchants Ass'n, 550 S.W.3d 586 (Tex. 2018) (allowed declaratory relief against a local ordinance imposing fines where enforcement threatened irreparable property harm)
State v. Morales, 869 S.W.2d 941 (Tex. 1994) (equity courts generally will not adjudicate criminal statutes absent irreparable injury to property rights)
Heckman v. Williamson Cnty., 369 S.W.3d 137 (Tex. 2012) (use the "essence" test to distinguish civil from criminal matters for jurisdiction)
Harrell v. State, 286 S.W.3d 315 (Tex. 2009) (example where a predominately civil claim involving post‑conviction financial orders was within civil jurisdiction)
City of Austin v. Austin City Cemetery Ass'n, 28 S.W. 528 (Tex. 1894) (equity may enjoin enforcement of a penal ordinance when it threatens destruction of property value)
In re Gee, 941 F.3d 153 (5th Cir. 2019) (cautionary authority on claim‑by‑claim standing where plaintiffs sought to enjoin a broad regulatory framework without showing injury from many challenged provisions)
Pike v. Tex. EMC Mgmt., LLC, 610 S.W.3d 763 (Tex. 2020) (subject‑matter jurisdiction cannot be waived and must be examined whenever doubtful)