On-Road Heavy-Duty Certification Program: Mailouts
Occasionally CARB will send mailouts to the industry in order to communicate new requirements, events or information. The table below contains the Heavy-Duty CARB mailouts.
| Date | Mailout MSO# | Subject | Purpose |
| August 29, 2007 | 2007‑03 | New Requirement to Report Carbon Dioxide Emissions From 2008 and Subsequent Model Year California Certified Vehicles and Engine. | The purpose of this mail-out is to inform all off-road and on-road engine and vehicle manufacturers of the new requirement to report CO2 emissions measured during the certification emissions tests. |
| July 20, 2012 | 2012-02 | Public Workshop to Discuss Current Alternative Fuel Conversion Requirements for New and Used Vehicles and Engines used in Such Vehicles | Invitation to participate in a public workshop to clarify CARB's current requirements regarding conversion of vehicles and engines to operate on alternative fuels. |