Have carbon monoxide detectors in the home. Put them near each sleeping area on every level of the house. Check the batteries at least twice a year at the same time as checking the smoke detector batteries.

"This initiative is all about making roads easier to navigate and safer for all drivers by giving motorists the length of larger vehicles they may be sharing the road with.

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"This way other drivers have the information in front of them regarding how long the vehicle is which helps them to make a more informed decision when overtaking.

The visual signage will show the number of trailers and total length of the restricted access vehicle and will include a graphic which shows the total length of the heavy vehicle as an equivalent number of car lengths.

Anyone exposed to carbon monoxide needs to get into fresh air and seek medical care right away. Call emergency medical services (EMS) or dial 911 right away for someone who's in a coma or can't respond.

This new change is introduced after 90 per cent of respondents voted in favour of the new signage following a trial of the new signage on freight vehicles throughout 2022 and 2023.

Have professionals set up all gas, oil or coal-burning appliances. Have a qualified service-provider service them yearly.

If the alarm sounds, believe it! Leave the house and call 911 or the fire department. Carbon monoxide detectors are also made for motor homes and boats.

"We rely on road trains to keep our economy moving and we know how intimidating it can sometimes be to try to overtake one.

The signage will replace the existing road train and long vehicle signage on all vehicles between 22 and 60 metres in length.

Breathing in smoke during a fire also can cause carbon monoxide poisoning. And smoking through a water pipe, called a hookah, has been linked to increasing numbers of younger people getting carbon monoxide poisoning.

Carbon monoxide poisoning occurs when carbon monoxide builds up in the blood. When too much carbon monoxide is in the air, the body replaces the oxygen in the red blood cells with carbon monoxide. This can lead to serious tissue damage, or even death.

Western Australia is the only State to have this type of signage, which has generated interest from other interstate road authorities.

Make sure there's space around fuel-burning appliances and engines. These include all gas appliances, space heaters and wood-burning stoves. Make sure they're vented properly.

Western Australian drivers will have a clearer idea of the length of road trains over 22 metres long when new signage is rolled out on road trains and other heavy vehicles this month.

The Government of Western Australia acknowledges the traditional custodians throughout Western Australia and their continuing connection to the land, waters and community. We pay our respects to all members of the Aboriginal communities and their cultures; and to Elders both past and present.

Many fuel-burning products and engines make carbon monoxide. Most often the amount of carbon monoxide from these sources isn't cause for worry in areas with good air flow. But if they're used in a partly closed or closed space, the carbon monoxide level can be a danger. Examples are using a charcoal grill indoors or a running car inside a garage.

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Carbon monoxide poisoning affects the brain and heart the most. Exposure over time might lead to symptoms that can be mistaken for the flu without the fever. Clearer symptoms of carbon monoxide poisoning can include:

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Carbon monoxide is gas that has no odor, taste or color. Burning fuels, including gas, wood, propane or charcoal, make carbon monoxide. Appliances and engines that aren't well vented can cause the gas to build up to dangerous levels. A tightly enclosed space makes the buildup worse.

Symptoms related to the nervous system and brain can come on after recovery from carbon monoxide poisoning. The risk of these is higher in people who lost consciousness from the carbon monoxide and older people. Symptoms might include:

Breathing the fumes causes carbon monoxide to replace oxygen in the blood. This prevents oxygen from getting to tissues and organs.

The signage displayed on the rear of restricted access vehicles is designed to assist other drivers to make more informed decisions when sharing the road, especially when overtaking.

Interstate Heavy Vehicle Operators travelling across the border to WA will not be penalised with existing warning signage will be recognised and accepted.

Carbon monoxide poisoning can be especially dangerous for people who are asleep, drugged or drunk. Carbon monoxide can cause brain damage or death before anyone realizes there's a problem.