Emissions of CO2 and other greenhouse gases are being monitored on electric cars and trucks and the vehicles’ roofs, with some companies using them as indicators of future emissions, the Environmental Protection Agency said in a report on Thursday.
The EPA, which is seeking bids for some of the projects, said the systems would provide a way for owners to monitor their vehicle’s carbon footprint.
The companies that have applied to install the sensors have pledged to use them as part of a long-term plan to reduce emissions, and they hope to install a fleet of the sensors by 2021.
But the EPA said some of those systems would not be able to provide an accurate measure of CO 2 emissions for a few reasons.
They are designed to measure a vehicle’s total energy use and not the emissions from its parts, or any other factors.
That could lead to an underestimate of emissions, which can be important because the system does not take into account how the vehicle is used.
The systems also don’t measure vehicle operation or maintenance, which are important because owners of electric vehicles are required to maintain the vehicles.
“The only thing they can tell you is how much energy they use,” said Andrew Hoey, a spokesman for the EPA.
Hoeys agency said it hopes to use a variety of systems to gauge emissions from the vehicles and their owners, and to eventually build a fleet to meet that goal.
The proposed system could measure the emissions of the roofing, interior and other parts of the vehicle, including the engine.
The agency is also looking for data on how the vehicles are used, including how often they are used.
A few companies have already started testing these systems.
General Motors Co. has been testing a system in South Carolina that would measure the amount of CO² emissions from a vehicle.
Nissan Motor Co. is testing one in Spain.
And Tesla Inc. has put out a solicitation for bids for its sensors and said it will be able use them in the near future.
Tesla has said that its sensors will be placed on a roof of a car that is leased or owned by an owner.
“We believe that we can deliver an accurate, timely and reliable measurement of CO emissions,” Tesla said in an email.
The new technology will allow manufacturers to measure their vehicles’ CO2 emissions and will help them avoid costly compliance costs, the EPA added.
The cars that emit the highest amount of emissions on average each year are those that have been sold for years.
The vehicles are also more likely to be leased by a household, which means they’re more likely than other cars to be parked or left unattended.
The emissions of emissions are calculated using the amount that the vehicle uses in an hour and half.