What do the Acronyms Mean?

Here are some acronyms that you may see when learning about preparedness on sites other than FEMA or Red Cross. I found this list of emergency preparedness acronyms to be especially useful when reading books on the subject, wether fiction or non fiction.

BI: Bug In
BO: Bug Out
BOB: Bug Out Bag
BOL: Bug Out Location
BoV or BOV: Bug-out Vehicle. Synonymous with G.O.O.D. (Get Out Of Dodge) Vehicle
EDC: Every Day Carry
EMP: Electromagnetic Pulse
GHB: Get Home Bag
Grid Down: An extended period of time when the power grid is non-functional
KI: Potassium Iodide
MSRA: Methicillin-Resistant Staphylococcus Aureus (bacteria)
Op Sec: Operational Security
POTUS: President Of The United States
Preps: What you have prepared and put up for an emergency
PSHTF: Post Stuff Hits The Fan
SHTF: Stuff Hits The Fan
TEOTWAKI: The End Of The World As We Know It
WTSHTF: When The Stuff Hits The Fan
WROL: Without Rule of Law