The thing about airports is they usually have a lot of rules and regulations to follow and such is true for smokers who want to ignite a cigar while waiting for their flight. Fortunately for them, some airports allow the use of e-cigarettes even when it's indoors. Let us find out which airports give green light to smoking e-cigarettes.

Considered as the rising fad among smokers nowadays, the use of battery-powered devices that are capable of providing sufficient nicotine has become very evident. Although this device produces a certain type of vapor similar to tobacco's, it is generally odorless and free from that irritating smell non-smokers do not want to breathe in. Everyone can't seem to get enough of this e-cigarette; from Hollywood stars such as Jenny McCarthy and even models and tv personalities like Kate Moss and Simon Cowell enjoy puffing this tobacco alternative.

However, there really are places that restrict the use of this device. Such is true in major U.S. airports, well at least for most of them since there are some airports that are still divided on whether or not they need to ban the use of e-cigarettes indoors. This is not at all surprising because according to the Airports Council International, state and local laws govern the acceptance or banning of e-cigarette use in airports.

Based on USA Today's research, there are airports that allow e-cigarette smoking indoors despite the abundance of general passengers who do not smoke, and there are also others that are still undecided but allow the use of the device in indoor smoking-designated areas.

Airports that permit the use of e-cigarettes:

1. Ronald Reagan Washington National Airport

2. Minneapolis-St. Paul International Airport

3. Las Vegas' McCarran International Airport

Charlotte Douglas International Airport

Airports that ban the use of e-cigarettes but allow smokers to puff the device in their smoking-designated areas:

1. Philadelphia International Airport

2. San Francisco International Airport

3. Los Angeles International Airport

Airports that allow and ban e-cigarette smoking depending on the terminal a user is in:

1. John F. Kennedy International Airport

2. New York City's LaGuardia International Airport

The main reason for the confusing implementation of e-cigarette banning and use in these New York City-based airports is the fact that the city does not have specific laws that govern the use of e-cigarette indoors; thus, business can readily set their own rules when it comes to the legitimate use of such a device.

For LaGuardia, e-cigarette smoking is banned in Terminal B that is being operated by the New York Port Authority, an agency that oversees the banning of e-cigarettes in terminals it operates. Meanwhile, LaGuardia's Terminals C and D that are being operated by Delta Airlines allow the use of electronic cigars. On the other hand, the John F. Kennedy International Airport allows smoking of e-cigars in Delta's Terminal 2 but bans its use in JetBlue's Terminal 5.

Nevertheless, New York City and Chicago are considering the banning of e-cigarettes in public places as of late.