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US Airline Regulations - Disabling Chemicals and Other Dangerous Items Permitted Aboard a Flight
Disabling Chemicals and Other Dangerous Items - Carry-on or Check?

Following the August 10, 2006 plot to bomb up to 10 passenger planes bound for the US from the UK, all passengers will be subject to new hand baggage restrictions and security screening, according to the Transportation Security Administration (TSA). New Airport Security Carry-on Regulations to see changes to carry-on restrictions.

Disabling Chemicals and Other Dangerous Items
Carry-on
Checked
Chlorine for Pools and Spas No No
Compressed Gas Cylinders (including fire extinguishers) No No
Liquid Bleach No No
Spillable Batteries (except those in wheelchairs) No No
Spray Paint No No
Tear Gas No No
Note - There are other hazardous materials that are regulated by the FAA. This information is summarized at http://asi.faa.gov/Passenger.asp

More 'Carry-on or Check' Regulations:

Source - Transportation Security Administration

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