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Home Readiness — Guide
If the Pentagon Is Preparing for 90 Days, How Many Days Should a Family Prepare For?
Short answer: Not 90 days. For most families the honest target is 3 days first, then two weeks — in stages. Three days is what US federal guidance and the new British advice both ask for; two weeks is what Oregon, Hawaii, and Washington ask of their own residents, and it is the longest stretch a house can cover with stored water and food before the math stops fitting in a normal home. The 90-day figure in the headlines is a reported standard for military bases — places with fuel farms, water systems, and supply chains — and the Pentagon has not confirmed it as a requirement at all.
What was actually announced, and what was only reported
The confirmed part is a programme, not a countdown. On September 30, 2026, the Pentagon publicly unveiled FORTRESS — a push for every major military installation in the continental US to generate its own power and operate independently of the civilian grid, with its own water, fuel, and communications. The Pentagon’s chief spokesperson said on the record that relying on civilian municipal infrastructure to run national defense is, in his words, an intolerable risk.
The 90-day part is thinner. It comes from a Fox News report published October 25, 2026, describing internal documents its reporters reviewed — documents that have not been made public. The Defense Department has not confirmed a 90-day standard outright, and fact-checkers who have looked at the claim have landed on versions of “the programme is real, the specific number is unverified.” So the calm reading is this: bases are being told to be able to stand alone for a long stretch, the exact length is reported rather than confirmed, and nothing in any of it is an instruction to households. No US agency changed its advice to families because of this story. What families should do still comes from the household guidance below — which, read together, draws a very clear line well short of 90 days.
What governments actually ask households to hold
Line the official numbers up and a pattern appears. Nobody with a household guide asks a family for 90 days of anything.
| Authority | Days asked | Notes |
|---|---|---|
| US — Ready.gov / FEMA | 3 days | Supplies for several days; 1 gallon of water per person per day |
| UK — Be Ready (Oct 2026) | 3 days | 3 litres (about 3 quarts) of water per person per day |
| Sweden — civil defence | 7 days | Manage on your own for at least one week |
| Germany — BBK (Oct 2025) | 10 days | Food and water for 10 days; 3 days as a starting point |
| Oregon, Hawaii, Washington | 14 days | State guidance: be ready to be on your own for two weeks |
| US military bases (reported) | 90 days | Fox-reported, not DoD-confirmed — and for bases, not homes |
The spread makes sense once you see what each number is for. Three days is the rescue window: the time emergency services reasonably need to restore power, water, and roads after a storm. One to two weeks is the isolation window: the stretch a region cut off by an earthquake, a wildfire evacuation zone, or an island supply chain might actually face — which is exactly why the Pacific and earthquake states ask for it. Ninety days is neither. It is a logistics standard for institutions that store fuel by the tank farm and generate power by the megawatt.
What governments actually ask households to hold (days of self-reliance each authority asks for): US — Ready.gov / FEMA, 3 days · UK — Be Ready, 3 days · Sweden — civil defence, 7 days · Germany — BBK, 10 days · Oregon, Hawaii, Washington, 14 days · US military bases (reported), 90 days.
Read the long bar honestly: The 90-day figure is a reported standard for military bases — not confirmed by the Defense Department, and set for institutions with fuel farms and supply chains. Every household guide stops at two weeks or less.
The math: what 3, 14, and 90 days weigh in a real house
Take a family of four and price each duration in the three things that run out first — water, food, and cold storage — using the plain figures our other pages work with: 1 gallon of water per person per day, about 2,000 calories per person per day, and a refrigerator using about 1,200 watt-hours a day.
| Duration | Water for 4 | Food for 4 | Fridge power |
|---|---|---|---|
| 3 days | 12 gallons | 24,000 calories | About 3,600 Wh |
| 14 days | 56 gallons | 112,000 calories | About 16,800 Wh |
| 90 days | 360 gallons | 720,000 calories | About 108,000 Wh |
Twelve gallons is two cases of water and a couple of jugs — a closet shelf. Fifty-six gallons is one standard drum in a garage corner, or the stackable containers in our water storage comparison. Three hundred and sixty gallons is six drums, before you have stored a single meal, and 720,000 calories is roughly a year of one adult’s eating — for a target no household authority sets. The power column closes the argument: 3,600 watt-hours is a mid-size power station working in shifts; 108,000 watt-hours is a whole-home battery system and a fuel supply, which is to say, it is what a base has. A family that tried to copy the headline number would spend the most money on the least likely stretch. The same money staged across two weeks covers the outages that actually happen, several times over. For the money side of the same staging, see how much cash to keep at home — its answer is built the same way, in days of essential spending.
What the days weigh: water (for a family of four, at 1 gallon per person per day): 3 days — 12 gallons · 14 days — 56 gallons · 90 days — 360 gallons.
In plain objects: Twelve gallons is two cases of water and a couple of jugs — a closet shelf. Fifty-six is one standard drum in a garage corner. Three hundred and sixty is six drums — before a single meal is stored.
Follow-up questions
Does the 90-day story mean stores will be empty for 90 days?
No. Nothing in the FORTRESS reporting describes a civilian supply failure, a rationing plan, or any instruction to the public. Bases planning to operate without outside support is a military resilience decision; grocery supply chains were not part of the story. The household risk the official guides plan around is shorter and duller: power out, water pressure down, card readers dark, roads closed — for days, not a season.
What is the 72-hour rule actually for?
Seventy-two hours — three days — is the window in which help is supposed to reach you. Ready.gov’s kit lists, the European Union’s preparedness strategy, and the UK’s Be Ready campaign all use it for the same reason: after a major storm or blackout, restoring a grid and reopening roads is measured in days. Covering those three days yourself — water, food that needs no fridge, light, a radio, and cash in small bills — is the floor every Western government now agrees on.
When does preparing for 14 days make sense instead?
When isolation, not the outage itself, is your realistic problem. Oregon asks for two weeks because of earthquake country; Hawaii because everything arrives by ship; Washington follows the same logic. Add your own versions of the same facts: a rural road that floods, a well pump that dies with the power, a medicine in the fridge that cannot miss, a winter storm that strands a county. If two or three of those sound familiar, two weeks is your number — and our priced-out first pantry shows the food half of it costs less than most people guess, because it starts from ordinary groceries.
How do you build from 3 days to 14 without buying it all at once?
In the order things expire in an outage. First the 3-day layer: water on the shelf, food that needs no cooking, lights, a radio, cash. Then stretch the pantry a week at a time with food your family already eats, bought one extra at a time — rotation keeps it from becoming a museum. Power comes last and sized honestly: our runtime page works out what a station actually buys a fridge, a freezer, or a CPAP, hour by hour. Work through the room-by-room readiness audit once and it will tell you which layer your house is missing; that answer is worth more than any headline number.
Frequently asked questions
How many days of food should a family of four store?
Three days as the floor — about 24,000 calories — and two weeks, about 112,000 calories, if isolation is realistic where you live. Beyond two weeks, spend on rotation and variety rather than volume; food nobody will eat is not readiness.
Is 72 hours enough for a hurricane or winter storm?
For most outages, yes — restoration after US storms is usually measured in one to four days. It is not enough for the tail cases: multi-week regional disasters are the reason the 14-day states exist, and why building past 3 days, gradually, is still worth doing.
Should I prepare for 90 days to be safe?
You can store more food if you have the room — a deep pantry hurts nothing. But do not chase 90 days of water or power; the storage math does not fit a house, and no household authority asks for it. Cover 3 days completely, then 14, before spending a dollar on day 15.
The verdict
The Pentagon story is worth reading calmly, because the calm version is useful: the institutions are taking self-sufficiency seriously, and households are being given the same advice at household scale by every government that publishes a number. That advice is 3 days first and 14 days if your geography earns it. Ninety days belongs to bases with fuel farms. Your version of the same idea fits on a shelf, in a drum, and in a pantry — and it can be finished this month.
The full set is at What People Are Asking About Outage Living. Start with the two money questions from the same reporting wave: how much cash to keep at home and what denominations it should be in.
Talk it over with other homeowners
The Ordinary Prepper Community on Facebook is where readers compare outage plans, show their setups, and help decide what we test next.