Hazard Class 2: Gases (Under Pressure)

Type	Common Examples	Domestic		International	Domestic Mail		Maximum Amount Permitted in Mail	Additional Information
Type	Common Examples	Air	Surface	International	DMM	PUB 52	Maximum Amount Permitted in Mail	Additional Information
Flammable	Hairspray (in aerosol can)	N	Y	N	601.10.12	342.2b	601.10.12	ORM-D or limited quantity only.
	Propane, camp stove fuel	N	Y	N	601.10.12	342.22c	601.10.12	ORM-D or limited quantity only.
	Spray paint (in aerosol can)	N	Y	N	601.10.12	342.22f	601.10.12	ORM-D or limited quantity only.
Non-Flammable	Fire Extinguishers)	Y	Y	N	601.10.12	342.22d	601.10.12	Fire extinguishers containing methyl bromide prohibited.
Non-Flammable	Nitrogen, compressed air)	Y*	Y	N	601.10.12	342.2b	601.10.12	ORM-D or limited quantity only.
Toxic	Ammonia, chlorine, carbon monoxide)	N	N	N	601.10.12	342.21	601.10.12	All toxic gases are prohibited.