| The sights of warning lights, and the sounds of | | | | siren. In yet other places the using of courtesy |
| sirens, are primarily associated with police vehicles, | | | | lights and full emergency vehicle lights will be |
| ambulances, and blood red fire trucks. While it is | | | | decided by the level of the emergency to which |
| true that these are the vehicles that need | | | | the volunteer is responding. |
| emergency vehicle lights the most, its usage is | | | | Similarly, while the right of ambulances to use |
| definitely not restricted to the trio. These lights | | | | emergency vehicle lights is almost universal, the |
| are sported by a wide cross section of people | | | | right of voluntary emergency medical service |
| involved in public service activities, as well as in | | | | personnel to use it is decided by the state in |
| private pursuits. | | | | which they operate. When a doctor is proceeding |
| While emergency vehicle lights are mandatory on | | | | in response to a medical emergency, he is allowed |
| fire engines, firefighting is done also by volunteer | | | | to use an emergency light even on his private |
| firefighters as by official fire service men. | | | | vehicle in some cases. Emergency medical |
| Volunteer firefighters are allowed to use warning | | | | technicians, or EMTs, are mostly allowed to use |
| lights on their vehicles when they are proceeding | | | | courtesy lights. |
| in response to a fire emergency. However, these | | | | Practically everyone has a right to use emergency |
| warning lights may not always be the conventional | | | | vehicle lights on a parked vehicle. Delivery trucks, |
| red lights used by regular fire trucks. | | | | or construction vehicles, or private vehicles which |
| The emergency vehicle lights used by volunteer | | | | are parked or moving through a place which is |
| firefighters may sometimes be a courtesy light. A | | | | neither a marked street nor a parking lot, have to |
| courtesy light is something that just conveys to | | | | sport emergency vehicle lights to make |
| the other vehicles on the road to consider letting | | | | themselves visible to everyone moving around in |
| the volunteer's vehicle to go faster. Sporting a | | | | those areas which may include other vehicles, |
| courtesy light does not give the user the right to | | | | pedestrians, or even animals. |
| proceed at breakneck speed, or to flout traffic | | | | Workers involved in rescue operations, and towing |
| rules. As the name of the light indicates, if the | | | | trucks use emergency vehicle lights, which may |
| other drivers on the street are courteous, the | | | | be courtesy lights or regular emergency lights. A |
| one using a courtesy light will be able to proceed | | | | dump truck used for shifting loose material will |
| faster. | | | | invariably use emergency vehicle lights even |
| Where the emergency vehicle lights are courtesy | | | | during daytime because collision risks are more |
| lights, the color may be green or blue. Those using | | | | with such vehicles. Emergency vehicle lights on a |
| a courtesy light are also not generally allowed to | | | | dump truck with a snowplough mounted on it is a |
| use a siren. However, some states allow | | | | must because snow removal periods are always |
| volunteer firefighters to use red lights that have | | | | connected with low visibility, not to speak of |
| all the privileges of regular emergency vehicle | | | | whiteouts and similar situations. |
| lights and they may also be allowed the use of a | | | | |