The California Air Resources Board (CARB)

• The CARB has the responsibility of protecting the environment and the public from the dangerous effects of air pollution.
• This is achieved through the development of actions and programs to mitigate climate change.
• Requiremenets include clean cars and fuels and the adoption of innovations that reduce greenhouse gas emissions.
• California has been the first developer of several effective methods that have created standards for successful climate and air programs in the country, and the world.

The CARB and Transport Refrigeration Units (TRUs)

• California needs to reduce emissions from TRUs and TRU generators while in transit and near distribution centers and other locations where they come together.
• TRUs are designed for the refrigeration or heating of perishable goods as they are transported in various containers.
• A noteworthy number of the units gather at truck stops, distribution facilities, and other centers where they emit pollutants, toxic contaminants, and diesel particulate matter, putting those who live nearby at risk.  
• Reducing these emissions will decrease any risks to public health, particularly near the most affected communities.
• All owners of TRUs that operate in California are supposed to take steps that reduce air pollution by following regulations that are issued by the CARB.

Summary of Early Findings

• We were unable to locate any pre-compiled, publicly available information that shows the market size for Transport Refrigeration Units in the U.S. All the reports that we found were paywalled.
• Despite this lack of data, there does appear to be a wealth of existing data related to this topic which could likely be used to triangulate an estimated market size. However, additional research/digging would need to be done in order to attempt this.