Air & AG Truck Rule

Air & AG Truck Rule

AG truck registrations can be registered under truck rule

The deadline for registering deisel Ag trucks under the CARB truck rule; the deadline for registering was January 31, 2015.  The diesel truck and bus rule applies to any on-road diesel vehicle heavier than 14,000 pounds gross weight rating (GWR) that is used on-or-off road in California.

Annual mileage provisions for registerd diesel trucks by model year are as follows:

  • 1995 model year and older – annual limit of 15,000 miles for operating years 2011-2019, then reduced to 10,000 miles for 2020 – 2022
  • 1996 – 2005 model years – annual limit of 20,000 miles for operating years 2011 – 2016, then reduced to 15,000 miles for 2017 – 2019, then 10,000 miles for 2020 – 2022
  • 2006 model year and newer – annual limit of 25,000 miles for operating years 2011 – 2016, then reduced to 15,000 miles for 2017 – 2019, then 10,000 miles for 2020 – 2022

This last deadline modified the 10,000 per year limit currently in place for compliance on older vehicles.  CARB states the goal of these changes is to have older model year engines replaced with 2010 model year or newer engines by 2023.  Some trucks that were previously approved for specialty AG vehicle exemptions with no mileage limitations are no longer available (except for cattle livestock trucks registered by January 31, 2015).  The low-use vehicle option has increased to 5,000 miles per year; these vehicles are not subject to the replacement requirments set for 2023 (this mileage level drops back to 1,000 miles per year in 2020).

Use the California Farm Bureau’s website to see more information with links to the CARB on-line reporting tool and the mail-in forms.

Once AG trucks are registered with CARB, annual compliace is requried each year by January 31st; this involves reporting mileage of each vehicle for the prior year.  AG designated vehicles must also display the AG truck sticker on the left and right doors of the vehicle.  See below for obtaining these door stickers.

If none of these options work for trucks currently on the road, there are two compliance schedules for replacements: for light-duty turcks (14,000 to 26,000 GWR), replacement compliance begins on January 1st, 2015 for any truck model year 1995 or older.  Depending on age, many trucks over 26,000 GWR are already required to comply with replacements or retrofits with soot traps.

Farm Bureau remains actively involved with CARB on regulatory compliance and will participate in support at all hearings on this proposal.

NOx Exempt Areas

CARB has expanded the NOx exempt counties. This option requires that you drive only in these designated counties and delays until 1/1/15 the first requirements to install a PM filter.  Here is the link to a fact sheet on the NOx exempt option.

NOx exempt areas area:  Alpine, Amador, Butte, Calaveras, Colusa, Del Norte, Eastern Kern (portion of Kern County within the Eastern Kern Air Pollution Control District), Glenn, Humboldt, Inyo, Lake, Lassen, Mariposa, Mendocino, Modoc, Mono, Monterey, Nevada, Northern Sonoma (as defined in title 17, CCR section 60100(e)), Plumas, San Benito, San Luis Obispo, Santa Barbara, Santa Cruz, Shasta, Sierra, Siskiyou, Northern Sutter (portion of Sutter County that is north of the line that extends from the south east corner of Colusa County to the southwest corner of Yuba County), the portions of El Dorado and Placer that are within the Lake Tahoe Air Basin, the portion of Placer that is East of Highway 89 or within the Lake Tahoe Air Basin, Trinity, Tehama, Tuolumne and Yuba.

AG & NE Stickers

Under the California Air Resources Board Truck and Bus Rule, diesel trucks that are identified on the reporting forms as being agricultural vehicles must be identified.

Owners must affix labels or paint an AG identification on their qualified diesel vehicles .

Truck owners must permanently affix or paint an AG identification label on the right and left door of each limited-mileage and specialty agricultural diesel vehicle in their fleet. Two stickers are required per truck.

MCFB has AG stickers in stock for exempt vehicles.  See air quality rules for applicability to your vehicle in the Monterey County region (link).