CARB Issues Advisory on Retreaded Tires - Tire Review Magazine

CARB Issues Advisory on Retreaded Tires

According to TRIB, in late 2012, the California Air Resources Board issued a Regulatory Advisory in an effort to outline how the low rolling resistance tire requirements of its Tractor-Trailer Greenhouse Gas Regulation will be implemented.

The advisory addresses both tractors that use two or more open shoulder drive tires, as well as 2011 model year and newer tractors and trailers using retreaded tires.
 
TRIB said the new advisory supplements a previous Regulatory Advisory that explained how the low rolling resistance tire requirements would be implemented for 2010 model year and older tractors.
 
In the first advisory, CARB stated:

Tractor-Trailer Greenhouse Gas Regulation Clarification Of Low Rolling Resistance Tire Requirements

The purpose of this advisory is to explain how the low rolling resistance tire requirements of the Tractor-Trailer GHG Regulation will be implemented for 2010 and older tractors.  The regulation requires 2010 and older affected tractors to use U.S. EPA SmartWay verified low rolling resistance tires by Jan. 1, 2013.  This advisory clarifies that tractors using new or retreaded non-SmartWay tractor tires that were manufactured prior to Jan. 1, 2013, can continue to use those tires for the useful life of that tread, or until Jan. 1, 2015, whichever comes first.  Any new or retreaded tire manufactured and installed on an affected tractor after Jan. 1, 2013, must be a SmartWay verified tire.  By Jan. 1, 2015, all tires on affected tractors must be SmartWay verified.

Regulation Background

On Dec. 12, 2008, the California Air Resources Board approved for adoption the regulation (title 17 California Code of Regulations sections 95300-95312) to reduce GHG emissions from long-haul tractor-trailer combination vehicles operating in California. The regulation applies to 53-foot or longer dry-van and refrigerated-van trailers (box-type trailers) and the tractors that pull them on California highways. The regulation requires tractor-trailers operating in California to utilize tractors and box-type trailers that are either U.S. EPA SmartWay certified, or retrofitted with SmartWay verified aerodynamic devices (typically skirts, tail devices or undercarriage devices for the trailer) and low rolling resistance tires on the tractor and trailer that meet specified fuel efficiency improvements. SmartWay verified low rolling resistance tires include new tires and retreads.  

The regulation requires owners of affected tractors to meet the following requirements with respect to low rolling resistance tires:

• 2011 model year and newer affected tractors (sleeper cabs and day cabs) must use SmartWay verified low rolling resistance new tires or SmartWay verified retread tires, beginning in 2010.

• 2010 model year and older affected tractors must use SmartWay verified low rolling resistance new tires or SmartWay verified retread tires by Jan. 1, 2013.

This Advisory clarifies that 2010 model year and older affected tractors using noncompliant tires manufactured or retreaded prior to January 1, 2013 (as determined by the date code on the tire sidewall) may continue to use those tires until the end of their useful tread life, or until Jan. 1, 2015, whichever comes first.  After Jan. 1, 2013, any tire on an affected tractor that must be replaced or retreaded must be a SmartWay verified low rolling resistance tire.  

A listing of SmartWay verified low rolling resistance tire and retread models is available on the U.S. EPA website at epa.gov/smartway/technology/tires.htm  

The latest Regulatory Advisory states:

Tractor-Trailer Greenhouse Gas Regulation Clarification Of Low Rolling Resistance Tire Requirements

This advisory explains how the low rolling resistance tire requirements of the regulation will be implemented for: (1) tractors that use two or more open shoulder drive tires, and (2) 2011 model year and newer tractors and trailers that use retreaded tires.

(1) Tractors using two or more open shoulder drive tires: The regulation requires tractors that use 2 or more open shoulder drive tires to use SmartWay verified low rolling resistance tires by Jan. 1, 2013.  This advisory clarifies that tractors using new non-SmartWay open shoulder drive tires manufactured before Jan. 1, 2013, can continue to use those tires for the useful life of that tread, or until Jan. 1, 2015, whichever comes first. Any new open shoulder drive tire manufactured after Jan. 1, 2013, must be a SmartWay verified low rolling resistance tire. This advisory also clarifies that tractors using non-SmartWay open shoulder retreaded tires manufactured prior to Jan. 1, 2014, may continue to use those tires for the useful life of that tread, or until Jan. 1, 2016, whichever comes first. Any open shoulder retreaded drive tire retreaded after Jan. 1, 2014, must be capped with a SmartWay verified low rolling resistance retread material on any casing.

(2) 2011 model year and newer tractors and trailers using retreaded tires: The regulation requires 2011 model year and newer tractors and trailers to use SmartWay verified low rolling resistance tires beginning Jan. 1, 2010. This advisory clarifies that 2011 model year and newer tractors and trailers using retreaded tires comprised of a SmartWay casing capped with any retread material prior to Jan. 1, 2013, can continue to use those tires for the useful life of the tread or until Jan. 1, 2015 for tractors and Jan. 1, 2017 for trailers, whichever comes first. Any tire retreaded after Jan. 1, 2013 must be capped with a SmartWay verified low rolling resistance retread material on any casing.
                                     
The manufacturing dates in this advisory are determined by the four-digit date code on the tire sidewall.

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