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Locally Enforced Idling Restrictions

On Diesel engines power most of the estimated 480,000 heavy-duty vehicles in the United States, and more than 40 known toxic chemicals have been identified in diesel exhaust. Recently, the World Health Organization (WHO) classified diesel exhaust as a known carcinogen, and specifically noted a casual link between exposure to diesel exhaust and lung cancer. One of the most dangerous components of diesel exhaust is particulate matter (PM). The U.S. EPA is particularly concerned with the smallest size particles, 2.5 microns in size and smaller, because they are most easily respired by people and organisms. Particulates are well known to aggravate asthma, cause lung inflammation, lead to heart problems, increase the risk of cancer, and possibly result in premature death.

To address unnecessary idling emissions, locally enforced motor vehicle idling limitations have been included as weight of evidence in the DFW 8-Hour Ozone Attainment Demonstration State Implementation Plan (SIP) and is one of several policies that NCTCOG has committed to implement in an effort to reduce air pollution and increase quality of life in the North Texas region.

On May 8, 2008, the Regional Transportation Council (RTC), the policy body for the North Central Texas Council of Governments' (NCTCOG) Transportation Department, approved a Resolutionsupporting locally enforced motor vehicle Idling restrictions in North Central Texas. 

As a result, the RTC is encouraging local government adoption of the Texas Commission on Environmental Quality’s (TCEQ) idling limitations rule as well as entrance into a North Texas Memorandum of Agreement (MOA) with the TCEQ, for the purpose of enforcement.
Exhaust from a truck idling
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Under this rule, gas and diesel vehicles with a gross vehicle weight rating greater than 14,000 pounds may not idle  for more than five minutes within participating jurisdictions. 

This includes both public and private vehicles and is currently applicable year round. Several exemptions exist related to vehicle type, operations, and air-conditioning/heating provisions. NCTCOG has developed a Local Government Guide for public entities to use as a resource in implementing and enforcing idling restrictions in North Central Texas. It is requested that local governments keep NCTCOG apprised of implementation and enforcement efforts. 

LEIR

Recent Rule Changes

 

  • On August 8, 2012, the TCEQ adopted a rule revision amending 30 Texas Administrative Code (TAC) 114, Sub-chapter J, Division 2, the Motor Vehicle Idling Limitations. This rule revision added an exemption to the Vehicle Idling Limitations Rule for motor vehicles that have a gross vehicle weight greater than 14,000 pounds and are required with a 2008 or newer engine that has been certified by the United States Environmental Protection Agency or a state environmental agency to emit no more than 30 grams of NOx per hour when idling.

  • On July 20, 2011, the TCEQ approved changes to the Locally Enforced Motor Vehicle Idling Limitations Rule.

       Changes include:

1) extending the enforcement period to year-round;
2) adding an exemption for armored vehicles;
3) reinstating the exemption for government-mandated rest-periods; and
4) removing prohibition of idling in neighborhoods, school zones, and near hospitals. 

These revisions are effective August 11, 2011.  More information is available at on TCEQ’s website at www.tceq.texas.gov/rules/adopt.html.


North Texas Idling Restrictions

Idle-Reduction News


 

 

7/19/2016  08/10/2011  CG/APB

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