Environmental Rules in Houston, TX (2026)
12 verified environmental rules for Houston, Texas, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Houston Code Chapter 47, Art. XII regulates stormwater discharges. New development on parcels of one acre or larger and significant redevelopments (adding 0.2+ acres of impervious surface) must obtain a Stormwater Quality (SWQ) permit. Houston's Design Manual Chapter 9 sets detailed stormwater design requirements.
Houston Stormwater Discharge Regulations
Heavy RestrictionsErosion Control
Houston requires erosion control measures for construction and development under Chapter 47 and the City of Houston Design Manual. Erosion control methods are required when design velocities exceed 3 feet per second. An engineered grading plan is required for more than 1,000 cubic yards of fill.
Houston Erosion Control Regulations
Heavy RestrictionsCoastal Development
Houston does not have a municipal coastal development ordinance. The city is approximately 50 miles inland from the Gulf of Mexico. Coastal development in the greater Houston-Galveston region is regulated by the Texas General Land Office and FEMA.
Houston Coastal Development Regulations
Few RestrictionsFlood Zones
Houston's Chapter 19 floodplain ordinance, significantly strengthened after Hurricane Harvey in 2018, requires new structures in the 100-year floodplain to be elevated 24 inches above the 500-year flood elevation. This is among the strictest floodplain regulations in the nation.
Houston Flood Zone Regulations (Chapter 19)
Heavy RestrictionsGrading & Drainage
Houston's Chapter 19 and Design Manual Chapter 9 impose strict grading and drainage requirements. Detention is required for most new development. An engineered grading plan is mandatory for more than 1,000 cubic yards of fill. Post-Harvey rules expanded Zero Net Fill to the 500-year floodplain.
Houston Grading and Drainage Regulations
Heavy RestrictionsTexas Local Government Code Sec. 232.003(5), (8) (Subdivision Drainage Requirements)
Sec. 232.003. SUBDIVISION REQUIREMENTS. By an order adopted and entered in the minutes of the commissioners court, and after a notice is published in a newspaper of general circulation in the county, the commissioners court may: ... (5) adopt reasonable specifications to provide adequate drainage for each street or road in a subdivision in accordance with standard engineering practices; ... ...
Shoreline Management
Houston's shoreline management is primarily governed by the Harris County Flood Control District and the U.S. Army Corps of Engineers. Regulations apply to development along Buffalo Bayou, other bayous, and the Houston Ship Channel. The city enforces buffer zones and setback requirements near waterways to reduce erosion and flood risk.
Houston Shoreline Management Regulations
Some RestrictionsVehicle Idling Restrictions
Houston falls within the Houston-Galveston-Brazoria ozone nonattainment area, where TCEQ Rule 30 TAC 114.512 limits heavy-duty vehicle idling to five minutes when ambient temperatures are between 40 and 90 degrees.
Idling Restrictions Under TCEQ Rule
Some RestrictionsTex. Health & Safety Code § 382.0191
Sec. 382.0191. IDLING OF MOTOR VEHICLE. (a) In this section, "idling" means allowing an engine to run while the motor vehicle is not engaged in forward or reverse motion.(b) The commission may not prohibit or limit the idling of any motor vehicle with a gross vehicle weight rating greater than 8,500 pounds that is equipped with a 2008 or subsequent model year heavy-duty diesel engine or liquefi...
Gas Leaf Blower Ban
Houston has not adopted a gas-powered leaf blower ban. Texas Health and Safety Code Section 382.0622 preempts cities from regulating outdoor power equipment emissions, leaving such restrictions exclusively to state authority.
No Local Gas Leaf Blower Ban
Few RestrictionsClimate Emergency Mobilization
Houston adopted its Climate Action Plan in April 2020, setting targets to achieve carbon neutrality by 2050 with interim 40 percent emission reductions by 2030 across transportation, energy, buildings, and materials management.
Houston Climate Action Plan 2020
Some RestrictionsSustainable Procurement
The Houston Sustainable Operations Plan directs city departments to favor environmentally preferable goods and services, prioritizing recycled content, energy-efficient equipment, low-emission vehicles, and locally sourced products in municipal contracting decisions.
Houston Sustainable Operations And Procurement
Some RestrictionsCool Roof Requirements
Houston Energy Code amendments to Chapter 28 require low-slope commercial roofs to meet minimum solar reflectance and thermal emittance values, reducing heat absorption and lowering cooling demand in the citys hot, humid climate.
Cool Roof Standards In Energy Code
Some RestrictionsTex. Health & Safety Code § 388.003
Sec. 388.003. ADOPTION OF BUILDING ENERGY EFFICIENCY PERFORMANCE STANDARDS. (a) To achieve energy conservation in single-family residential construction, the energy efficiency chapter of the International Residential Code, as it existed on May 1, 2001, is adopted as the energy code in this state for single-family residential construction. On September 1, 2016, the energy efficiency chapter of t...
Heat Island Mitigation
Houstons Climate Action Plan and Bayou Greenways 2020 program target urban heat island reduction through expanded tree canopy, green infrastructure, and the citywide goal of planting 4.6 million trees by 2030 to cool neighborhoods.
Heat Island Mitigation And Urban Canopy
Some RestrictionsLooking for Harris County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Houston city rules.
Environmental Rules in Harris County →