Surviving requires a unique set of skills and tools that you normally use in an unknown environment with billions of possibilities. Every surviving technique is different depending on multiple different factors.
A bug-out bag checklist is a list of all the items necessary for survival. These should be ready to go in your backpack. Thus, when you have to leave the house in emergencies, you will have everything ready.
There are some general items that every bug-out bag should have. Things you need to start a fire, set up shelter, purify water, or get food. These are items that are mandatory for your survival kit.
This infographic lists the required items for each bug-out bag tier. Please note that tiers are not individual bags. Each tier stacks on the previous one. For example, a tier 3 bag includes tier 1 and tier 2 items.