Code — Meaning
CAO   — Cargo Aircraft Only
DGD   — Shipper's Declaration for Dangerous Goods
ICE   — Carbon dioxide, solid (dry ice)
IMP   — Interline Message Procedure
MAG   — Magnetized Material
RCL   — Cryogenic Liquid
RCM   — Corrosive
RCX   — Explosives 1.3C
RDS   — Biological Substance, Category B (UN 3373)
REQ   — Dangerous Goods in Excepted Quantities
REX   — To be reserved for normally forbidden Explosives, Divisions 1.1, 1.2, 1.3, 1.4F, 1.5 and 1.6
RFG   — Flammable Gas
RFL   — Flammable Liquid
RFS   — Flammable Solid
RFW   — Dangerous When Wet
RGX   — Explosives 1.3G
RIS   — Infectious Substance (UN 2814 or UN 2900)
RMD   — Miscellaneous Dangerous Goods
RNG   — Non-Flammable Non-toxic Gas
ROP   — Organic Peroxide
ROX   — Oxidizer
RPB   — Toxic substance
RPG   — Toxic Gas
RRE   — Excepted Packages of Radioactive Material
RRW   — Radioactive Material Category I-White
RRY   — Radioactive Material Categories II-Yellow and III-Yellow
RSB   — Polymeric Beads
RSC   — Spontaneously Combustible
RXB   — Explosives 1.4B
RXC   — Explosives 1.4C
RXD   — Explosives 1.4D
RXE   — Explosives 1.4E
RXG   — Explosives 1.4G
RXS   — Explosives 1.4S