Every 72 hour emergency kit needs water, food, light, a radio, first aid supplies, sanitation items, and key documents to sustain you for three days.
Government agencies like FEMA and the CDC agree on the core contents of a 72 hour emergency kit. The goal is simple: keep you self-sufficient for at least three days after a disaster. While many people focus on food alone, the official checklists cover much more — from communication tools to sanitation supplies.
Water and Food: The Foundation of Your Kit
Water is the single most important item. FEMA recommends storing one gallon per person per day for at least three days — three gallons per person total, covering drinking and basic sanitation. The CDC’s evacuation guidance uses the same three-day standard.
For food, FEMA advises a three-day supply of non-perishable items requiring no refrigeration and little prep. The CDC echoes this. A few practical picks:
- Canned meats, soups, and vegetables
- Peanut butter, nuts, and granola bars
- Dried fruit and crackers
- Instant coffee, tea, and powdered milk
Don’t forget a manual can opener — an electric one is useless when the power is out. Rotate food every six months to keep it fresh.
Beyond Food: Light, Communication, and Power Tools
FEMA’s checklist includes several often-overlooked items.
Light and signaling: A flashlight with extra batteries is essential, plus a whistle to signal for help if trapped. LED flashlights last longer on batteries than traditional bulbs.
Communication: A battery-powered or hand-crank radio is a must — FEMA and the CDC recommend a NOAA Weather Radio with tone alert. Pair it with a charged cell phone and a backup battery or power bank.
Tools and navigation: FEMA’s checklist includes local maps — digital maps depend on cell service, which often fails. A dust mask, plastic sheeting, and duct tape help filter contaminated air and seal off a room for sheltering in place.
First Aid, Sanitation, and Personal Necessities
FEMA recommends a first aid kit as a core item; the CDC’s checklist spells out specifics — bandages, antiseptic ointment, face masks, gloves, and a first-aid reference book.
For sanitation, FEMA lists moist towelettes, garbage bags, and plastic ties. You’ll also want a change of clothes, sturdy shoes, and a blanket or sleeping bag per person.
The CDC adds two critical, often-forgotten items:
- A 7-day supply of prescription medications and medical items (glasses, hearing aid batteries)
- Copies of personal documents — ID, insurance policies, medical records — plus family and emergency contact info in print form
Keep cash in small bills; ATMs and card readers may not work after a major disaster.
Storage, Maintenance, and Common Mistakes
FEMA recommends putting supplies in airtight plastic bags and keeping everything in one or two easy-to-carry containers, like a plastic bin or duffel bag. Store it somewhere accessible and tell every household member where it is.
The most common mistake is treating the kit as food-only. Official guidance spans water, alerting, lighting, first aid, sanitation, and documents — skipping any category leaves you exposed. Planning for just one day also falls short of FEMA’s three-day standard, and forgetting prescriptions is the costliest error of all.
Check your kit twice a year: replace expired food, refresh water, test batteries, rotate medications. Set a calendar reminder when daylight saving time changes.
FEMA’s list covers what every individual needs for the first 72 hours; weapons are notably absent. If you’re building or upgrading your kit, browse our tested roundup of the best 72 hour emergency kits for pre-assembled options matching the official checklist. FEMA’s build-a-kit guidance for emergencies provides the full official checklist this article is based on.
| Category | Item | Official Source |
|---|---|---|
| Water | 1 gallon per person per day, 3-day supply | FEMA |
| Food | 3-day supply, non-perishable | FEMA, CDC |
| Light | Flashlight + extra batteries | FEMA |
| Radio | NOAA Weather Radio, battery or hand-crank | FEMA, CDC |
| First Aid | Bandages, antiseptic, gloves, mask | CDC |
| Sanitation | Towelettes, garbage bags, plastic ties | FEMA |
| Documents | Copies of ID, insurance, contacts | CDC |
| Medications | 7-day supply + medical items | CDC |
Print this table and tuck it inside your kit so anyone using it can verify nothing important is missing.
FAQs
How much water should I store per person?
FEMA recommends at least one gallon per person per day for a minimum of three days — three gallons per person total. Double it in hot climates, with pets, or if anyone is pregnant or has medical conditions increasing water needs.
How often should I refresh my emergency kit?
Check twice a year and rotate perishables as they expire — review when you change clocks for daylight saving time. Replace stored water every six months, swap expired food, and test or replace batteries on the same schedule.
Should I keep copies of documents in my kit?
Yes. The CDC recommends storing copies of personal documents and family and emergency contact info, including photo ID, insurance policies, medical records, and a medication list. Keep originals in a waterproof, fireproof safe at home; store copies in sealed plastic bags.
References & Sources
- FEMA. “How to Build a Kit for Emergencies.” Official FEMA release covering the complete emergency kit checklist.
- FEMA. “Basic Preparedness.” FEMA’s foundational preparedness document detailing water, food, and supply recommendations.
- CDC. “Evacuation Supply Checklist.” CDC guidance on evacuation supply contents, including medications and documents.
