Maintenance calendar

A preparedness footprint is not a one-time purchase — it is a living system that degrades without maintenance. Stored water goes stale. Battery capacity fades. Generator carburetors gum up from sitting. Medical supplies expire. Chimneys accumulate creosote. A maintenance calendar consolidates all of these rotation, inspection, and drill cadences across every Foundation into a single visible document, so nothing gets checked in January and forgotten until the following winter.

The calendar below covers a full year. Print it. Post it somewhere you see it. The logic is simple: a task that lives in a folder is invisible; a task posted on your utility room wall gets done.

Educational use only

This calendar is a scheduling and routing tool. The cadences listed follow NFPA 10, NFPA 211, CDC, and manufacturer guidance where applicable, but they are general frameworks — not a substitute for reading the full procedure on each linked Foundation page. Electrical, fire-suppression, and chimney tasks should be performed by qualified technicians where local codes or equipment complexity require it.

Action block

Do this first: Print the month-by-month calendar table below and pin it to your laundry room or basement utility wall. (15 minutes) Time required: Active: 15 minutes to set up; 10–30 minutes per monthly maintenance pass Cost range: inexpensive (printer paper, push pins) Skill level: Beginner Tools and supplies: Tools: printer, push pins or magnets. Supplies: this page printed. Infrastructure: visible wall in utility area. Safety warnings: See Educational use only above — specific safety tasks here link to dedicated Foundation pages with full procedures.

Month-by-month calendar

This table is the printable. Each cell is a 1–3 word task cue. The detail for each task lives in the sections that follow.

How to use this table: Each row is one month, each column a maintenance category. When you complete a task, write the date and your initials in the printed cell. The written record is your evidence the task happened. An em-dash (—) in a cell means no scheduled task for that month-category — not a missed task or a broken table.

Month Water Food Energy Generator Fire Safety Medical Vehicle Other
Jan Check containers Pantry FIFO Battery visual Test-start Extinguisher visual — Tire pressure Insurance binder
Feb — Freeze-dried audit — — — — — —
Mar — — Solar clean 30-min load run — — Oil change reminder Spring prep
Apr — Rotate oldest Battery visual Test-start Extinguisher visual Kit quick-look Tire pressure Evacuation drill
May — — — — — — — Summer fire prep
Jun Rotate tap water Restock used Solar clean 30-min load run — — — —
Jul — Pantry FIFO Battery visual Test-start Extinguisher visual — Tire pressure —
Aug — — — — — — — Comms drill
Sep — Harvest-season audit Solar clean 30-min load run Extinguisher visual Medical full audit Oil change reminder Fall heating prep
Oct Rotate tap water Rotate oldest Battery visual Test-start — — Tire pressure Furnace inspection
Nov — — — — Extinguisher visual — — Pipe insulation
Dec — Holiday restock Solar clean 30-min load run Chimney inspection — Battery check Document refresh

Monthly tasks

Five to eight tasks that need attention every month. These are fast — most take under 10 minutes.

Fire extinguisher visual inspection — Walk to every extinguisher in the household. Confirm it is in its designated location. Check that the pressure gauge needle is in the operable (green) zone. Verify the tamper seal and pull pin are intact. Check for visible damage, corrosion, or nozzle obstruction. This monthly visual inspection is the minimum requirement per NFPA 10 (2022), Section 7.3. It does not replace the annual maintenance service by a certified technician. Write the date on the tag attached to the extinguisher or directly on the printed calendar.

See energy/generators.md for fire suppression in generator areas and shelter/fire-resistance.md for home fire-safety overview.

Smoke and CO alarm test — Press the test button on every smoke alarm and every carbon monoxide (CO) alarm. If any unit fails to sound, replace the battery immediately and retest. Units older than 10 years (smoke) or 5–7 years (CO) should be replaced per manufacturer guidance. This takes less than five minutes.

Tire pressure check — Under-inflated tires degrade handling and fuel economy. Check cold pressure (parked at least three hours) with a gauge and compare to the door-placard specification — not the tire sidewall maximum. A portable inflator kept in the vehicle is inexpensive and eliminates gas-station trips for this task. See tools/vehicle-kit.md for a complete vehicle maintenance kit list.

Generator test-start — Start the generator and let it run for five minutes at no load to confirm it starts reliably and that the fuel system is functional. This monthly no-load start is separate from the quarterly under-load exercise. If the generator hasn't run in more than a month, fuel stabilizer should be added to the tank.

Quarterly tasks

Four times a year — January, April, July, October is a simple cadence. Or use the seasonal transitions: spring, summer, fall, winter.

30-minute generator run under load — Run the generator for a minimum of 30 minutes at not less than 30% of its rated load. This burns off carbon buildup, circulates oil, recharges the starting battery, and prevents "wet stacking" — unburned fuel accumulation in exhaust and cylinders that occurs in diesel engines running at light loads — which fouls the system over time. Connect real loads — refrigerator, a few lights, a power tool — to reach at least 30% rated output. Record the run date and any observations (unusual noise, smoke, output voltage) on the printed calendar. See energy/generators.md for full maintenance procedure.

Battery visual inspection — For flooded lead-acid batteries: check electrolyte levels (distilled water only to top up), look for terminal corrosion, inspect cable connections for tightness. For sealed AGM (absorbed glass mat) and lithium iron phosphate (LiFePO4) batteries: inspect terminals for corrosion, check for case swelling or cracking. A swollen LiFePO4 cell is a safety issue — isolate immediately. Different battery chemistries have different tolerances: lead-acid loses capacity below 50% depth of discharge (DoD); LiFePO4 tolerates 80–90% DoD without significant cycle-life reduction. See energy/batteries.md for chemistry-specific maintenance schedules.

Evacuation or fire drill — Run one of three drill types each quarter, rotating through the year: (1) fire drill — all occupants exit the structure via pre-planned routes and meet at the designated rally point; (2) evacuation drill — load the go-bags into the vehicle and drive to the primary evacuation destination; (3) comms drill — verify that all household members can reach each other via the pre-planned out-of-area contact and know to text rather than call during network congestion. Drills that happen once a year are largely performative. Quarterly drills build genuine muscle memory. See community/comms-plan.md for comms setup.

Solar panel visual inspection and cleaning — Inspect every panel for visible cracks, delamination, bird or rodent damage, and loose conduit connections. Clean the glass surface with a soft brush or low-pressure water rinse. Do not use abrasive materials or high-pressure washing — both can scratch the glass or force water into seams. Dust accumulation reduces output by 5–20% per EnergySage research; in high-dust or desert environments, clean more frequently (every 6–8 weeks). See energy/solar-basics.md for system overview.

Medical kit quick-look — Open the medical kit and spot-check a random 20% of its contents. Check expiration dates on medications and biologics. Look for dressings that have been opened and not replaced. Confirm that the kit is complete relative to your baseline checklist. This is not the full annual audit — it is a quick integrity check that catches silent depletion between annual passes. See medical/home-kit.md for a complete kit inventory template.

Semi-annual tasks

Twice a year: once in June, once in October is a clean cadence.

Rotate stored tap water — Water stored in food-grade containers from the tap should be replaced every six months per CDC emergency water storage guidance. Use the old water for garden irrigation or cleaning rather than discarding it. Refill containers with fresh tap water and, if adding treatment, use unscented liquid bleach at 8 drops per gallon (2 mL per 3.8 L). Label each container with the new fill date. Commercially bottled water carries a manufacturer expiration date and can be stored up to one year before rotation per CDC guidance; stainless steel and glass containers also extend shelf life. See water/rotation.md for container selection and treatment details, and water/storage.md for capacity planning.

Food pantry FIFO check — First-In, First-Out (FIFO) rotation means the oldest item is consumed first. Every six months, pull every item out of your pantry and verify that front-shelf items are older than back-shelf items. Check use-by and best-by dates. Items within 60 days of expiration should move to the active kitchen. Categorize by shelf life: canned goods typically last 2–5 years; dried grains in sealed mylar bags with oxygen absorbers last 25–30 years; freeze-dried products last 20–30 years. The rotation calendar prevents waste without forcing consumption of food that has years of shelf life remaining. See food/pantry.md for storage organization, food/storage.md for category-specific shelf lives, and food/inventory.md for tracking systems.

Medical kit expiration spot-check — Check all medications and biologics for expiration dates. Prioritize: epinephrine auto-injectors (EpiPens) degrade at room temperature and have strict expiration dates that are not FDA SLEP-extendable; insulin has specific room-temperature windows (28–56 days depending on formulation); OTC medications like ibuprofen and acetaminophen are typically stable 2–4 years past manufacture. Flag anything expiring within 90 days for replacement. See medical/stockpiling.md for shelf-life data and medical/cold-chain.md for refrigerated medication management.

Annual tasks

These require a scheduled block of time — typically 1–3 hours each. Anchor them to a fixed date to prevent drift.

Chimney and wood stove inspection — Schedule a Level 1 chimney inspection by a Chimney Safety Institute of America (CSIA)-certified technician at least once per year per NFPA 211 (2024 edition), Section 14.2.1. The technician inspects all accessible areas for blockages, creosote buildup, structural cracks, and damaged flue tiles. A Level 2 inspection (including video scan of the flue) is required after any chimney fire, after any change to the connected appliance, or when purchasing a new home. Creosote ignition in a chimney sounds like a freight train inside the wall — if this occurs, evacuate and call 911. Do not relight until a Level 2 inspection is complete. See energy/wood-heat.md for wood stove operation and shelter/fire-resistance.md for home fire safety context.

Fire extinguisher annual maintenance service — In addition to monthly visual inspections, each fire extinguisher requires an annual maintenance check by a certified fire equipment technician per NFPA 10 (2022), Section 7.3. The technician tests operating mechanisms, verifies internal charge, and inspects seals, valves, and hose integrity — components that a visual inspection cannot evaluate. Keep records of the service date and technician's tag on each unit. Dry chemical extinguishers also require a 6-year internal inspection and hydrostatic test at 12 years per NFPA 10 intervals. Most households with 1–3 extinguishers find it practical to have all units serviced in a single annual visit.

Full medical kit expiration audit — Pull every item from every kit (home kit, IFAK, vehicle kit, go-bag) and check expiration dates against a printed checklist. Replace expired medications. Replace dressings and hemostatic gauze that are past date or have been compromised. Reorder prescription medications where possible. Update any personal medical information cards. This annual audit is also the right time to assess whether the kit matches your household's current needs — a new medication, a new household member, a new medical condition all have kit implications. See medical/home-kit.md and medical/ifak.md for baseline kit specs.

Deep-cycle battery load test — A quarterly visual inspection catches visible damage. An annual load test reveals actual remaining capacity. For flooded lead-acid and AGM batteries, use a carbon pile load tester or conductance tester to measure capacity against the manufacturer's rated ampere-hours. For LiFePO4 systems, most battery management systems (BMS) report state of health (SoH) as a percentage — check this annually. Lead-acid batteries should be replaced at 30–36 months of service regardless of voltage readings, since capacity fade is not always visible in resting voltage. LiFePO4 typically retains 80% capacity after 2,000–3,000 cycles, making replacement intervals much longer. See energy/batteries.md for chemistry-specific guidance.

Generator full service — In addition to quarterly load runs, an annual full service covers: oil and filter change (per manufacturer interval, often 100 hours of run time or annually, whichever comes first), air filter inspection and replacement, spark plug inspection and replacement, fuel filter replacement, coolant level check on liquid-cooled units, and load bank test at 75–100% rated output. Keep a service log. A generator that hasn't been serviced since purchase is a generator you cannot rely on. See energy/generators.md for detailed service procedures.

Emergency document refresh — Pull your emergency binder and verify that every document is current:

  • Home and vehicle insurance declarations pages — confirm coverage limits and update if property values have changed
  • Vehicle registration and proof of insurance in each vehicle
  • Passports and government-issued IDs — flag any expiring within 12 months
  • Medical records, vaccination histories, prescription lists for all household members
  • Contact sheet — out-of-area emergency contact, neighbor contacts, utility company emergency lines, local emergency management numbers
  • Copies of deed, titles, and financial account information

For documentation organization guidance, see community/financial-resilience.md, which covers insurance audit and documentation practices for preparedness households.

Vehicle maintenance anchor — An annual maintenance check should cover: oil change at manufacturer-specified intervals (typically 5,000–7,500 miles (8,000–12,000 km) for conventional oil; 7,500–15,000 miles (12,000–24,000 km) for full synthetic, per your owner's manual); air filter inspection; brake inspection; cooling system check; battery load test (vehicle starting battery, separate from your home battery bank). Note that emissions and safety inspection requirements vary by state — do not cite these as universal. The annual vehicle check is in addition to, not a replacement for, monthly tire pressure checks and the fuel management discipline covered in tools/vehicle-kit.md.

Insurance binder annual review — Review coverage annually, ideally in January before rates are typically updated. Confirm that replacement-cost coverage reflects current construction costs (which have increased significantly since 2020 in most markets). Check that scheduled personal property riders cover valuable preparedness equipment. Verify that your flood or earthquake rider (if applicable) is still in force. See community/financial-resilience.md for the full insurance audit framework.

Seasonal prep blocks

Four seasonal windows, each with a hard deadline anchored to a date.

Fall — October 15 deadline

Furnace and heating system inspection — Schedule furnace inspection before first use. Clean or replace the air filter. Verify that gas supply valves are open. If you use a wood stove or propane heater as a backup, confirm fuel supply levels before cold weather arrives. Confirm that all portable heaters are rated for indoor use and have tip-over and overheat cutoffs — never use outdoor-rated propane appliances indoors. See shelter/warmth.md for heating-without-central-heat procedures.

Heating fuel inventory — Check propane tank level or cordwood supply. For propane, target a minimum 30% tank fill entering heating season — this is a practical rather than regulatory threshold derived from typical refill-window and cold-snap consumption rates (a 500-gallon residential tank at 30% holds ~150 usable gallons, roughly 2–4 weeks of consumption for a propane-heated home in a cold climate; consult your propane supplier for region-specific delivery cadence). Most suppliers will not automatically deliver below 20% on a will-call account, so 30% leaves a delivery buffer. For cordwood, the general rule is one cord — a stack 4 ft × 4 ft × 8 ft (1.2 m × 1.2 m × 2.4 m) — per 1,000 square feet (93 sq m) of heated space per month in a cold climate — verify against your specific stove efficiency and climate zone. See energy/firewood.md for seasoning and storage.

Cold-weather vehicle prep — Confirm that antifreeze mixture is rated to at least 10°F (–12°C) below your local typical low. Check that winter wiper blades are installed. Add a cold-weather vehicle kit: ice scraper, traction mat, small shovel, emergency blanket, extra gloves.

Garden harvest and soil prep — Complete harvest, remove spent plants, and cover garden beds with mulch or cover crops before ground freeze. Save seeds from open-pollinated varieties before they are composted. See food/gardening.md and food/seed-saving.md for timing.

Spring — March 1–April 15 window

Pipe and plumbing inspection — Walk the property perimeter and check all outdoor hose bibs, irrigation lines, and crawl space plumbing for freeze damage. A hairline crack in a copper pipe may not leak until the line is pressurized after winter. Turn on outdoor water slowly and watch for signs of leakage before re-pressurizing the full irrigation system.

Well system restart — If a well pump or pressure tank was winterized, follow manufacturer restart procedures. Prime the pump if required. Test water quality before using stored water. See water/wells.md for well maintenance and water/testing.md for water quality testing.

Generator spring service — If the generator was stored over winter, drain and replace fuel stabilized beyond six months. Check battery charge level on the starting battery — replace if below 12.4 V at rest for 12-volt systems. Confirm oil level and change if approaching the annual interval. Run under load for 30 minutes to fully warm the engine.

Garden start — Start seeds indoors 6–8 weeks before last frost date for your zone. See food/gardening.md for planting calendar by USDA hardiness zone.

Summer — June 1 deadline

Defensible space inspection — Clear vegetation within 30 feet (9 m) of all structures to at least the standards in NFPA 1144 for wildfire-prone areas. Remove dead vegetation, trim tree branches to at least 6 feet (1.8 m) above ground, and create a non-combustible zone within 5 feet (1.5 m) of the structure. In high-fire-risk zones, maintain a secondary zone from 30–100 feet (9–30 m) with reduced fuel load. See shelter/fire-resistance.md for full defensible space procedures.

Cooling system and shade audit — Confirm that whole-house fans, attic ventilation, and window coverings are functional before sustained heat arrives. Identify the coolest interior room for heat wave shelter-in-place. Confirm that anyone with heat sensitivity — elderly, infants, people on diuretics or antipsychotics — has a plan to access air conditioning. See shelter/cooling-offgrid.md for off-grid cooling options.

Water supply audit — Verify that stored water is within rotation window. Confirm that your primary and backup water sources are functional. If you rely on rainwater harvesting, inspect gutters, collection screens, and tank inlet filters before the wet season. See water/rainwater.md for system maintenance.

Winter — November 30 deadline

Pipe insulation and freeze prevention — Wrap any uninsulated pipes in exterior walls or unheated spaces with foam pipe insulation (available inexpensively at any hardware store). For pipes at severe freeze risk: confirm that heat tape is functional and connected. Know where your main water shutoff is — if a pipe bursts, shut off main water immediately and open the lowest faucet to drain remaining pressure. At sustained outdoor temps below 20°F (–7°C), allow a thin trickle to flow from faucets on exterior walls to prevent freeze.

Generator winter prep — Cold weather reduces lead-acid battery starting power (by up to 50% at 0°F (–18°C)). Confirm that starting battery is fully charged and load-tested. Use the correct oil viscosity for winter operation per the generator manufacturer's specifications — most small engines use 10W-30 above 40°F (4°C) and 5W-30 below 40°F (4°C). Store a full tank of stabilized fuel.

Emergency supply inventory — A severe winter storm that lasts 3–7 days is the scenario most households have not fully prepared for. Verify: minimum two weeks of food and water on hand; battery-powered or hand-crank emergency radio; flashlights with fresh batteries; a heat source that does not require grid power (wood stove, propane heater rated for indoor use, or emergency candle heaters). See threats/winter-storm.md for the full winter storm response playbook.

Failure modes

These are the three most common breakdowns in maintenance calendar systems, with recognition and remediation for each.

Calendar without a visible home — Recognition: The calendar lives in a digital folder, a binder in the closet, or someone's memory. When you ask any household member "when did we last rotate the water?" there is no immediate answer. Remediation: Print the month-by-month table on a single sheet and post it at eye height in a place you see daily — the laundry room, the utility panel door, the garage wall. Digital calendar reminders are a backup, not the primary system. The physical calendar is the system.

Task without measurement — Recognition: The battery got "checked" quarterly but there is no recorded voltage, no load-test result, and no date. Six months from now you cannot tell whether the battery degraded or stayed stable. Remediation: Write numbers directly on the printed calendar. Battery: write resting voltage and date. Generator: write run time, load, and any anomalies. Medical kit: write which items were replaced and the new expiration date. The record is the task; "I think we did it" is not.

Seasonal creep — Recognition: The fall heating prep was supposed to happen in October, but it is now December and the furnace inspection has not been scheduled. The summer defensible-space clearing was going to happen in May and it is now August. Remediation: Set a hard date for each seasonal task — not "before winter" but "October 15." Write it on the printed calendar as a deadline, not a reminder. If October 15 arrives and the furnace has not been inspected, it is overdue, not in progress. A task with a soft deadline has no deadline.

Field note

The most reliable maintenance routine is one anchored to something that already happens. Tie the quarterly generator run to the first Saturday of each season. Tie the monthly tire-pressure check to every first-of-month fill-up. Tie the annual medical kit audit to Thanksgiving weekend — you are already home, family may be visiting (more hands), and the timing is appropriate before the winter illness season. Borrowed habits are more durable than invented ones.

Master checklist

Use this list as your annual audit starting point. Mark each item with the month it was last completed and the scheduled next date.

Monthly

  • Fire extinguisher visual inspection (all units) — date: ______
  • Smoke and CO alarm test — date: ______
  • Tire pressure check (all vehicles) — date: ______
  • Generator test-start (no load) — date: ______

Quarterly (Jan, Apr, Jul, Oct)

  • Generator 30-minute load run — date: ______
  • Battery visual inspection — date: ______
  • Evacuation or drill (fire / evacuation / comms, rotating) — date: ______
  • Solar panel visual inspection and cleaning — date: ______
  • Medical kit quick-look — date: ______

Semi-annual (Jun, Oct)

  • Rotate tap water storage (6-month cycle) — date: ______
  • Food pantry FIFO review — date: ______
  • Medical kit expiration spot-check — date: ______

Annual

  • Chimney Level 1 inspection by CSIA-certified tech (NFPA 211 §14.2.1) — date: ______
  • Fire extinguisher annual maintenance by certified technician (NFPA 10 §7.3) — date: ______
  • Full medical kit expiration audit — date: ______
  • Deep-cycle battery load test — date: ______
  • Generator full service (oil/filter/plug/fuel filter) — date: ______
  • Emergency document refresh — date: ______
  • Vehicle annual maintenance (oil/brakes/battery/cooling) — date: ______
  • Insurance binder review — date: ______

Seasonal

  • Fall — furnace/heating inspection (Oct 15 deadline) — date: ______
  • Fall — cordwood or propane inventory — date: ______
  • Spring — pipe and plumbing inspection (Mar 1–Apr 15) — date: ______
  • Spring — well system restart — date: ______
  • Summer — defensible space clearing (Jun 1 deadline) — date: ______
  • Summer — cooling system audit — date: ______
  • Winter — pipe insulation and freeze prevention (Nov 30 deadline) — date: ______
  • Winter — generator winter prep — date: ______

The gap between a functional preparedness system and a degraded one is usually not a single catastrophic failure — it is a dozen small maintenance items that each seemed deferrable. The calendar keeps those items visible. Start with the current month's tasks, complete them today, and the rest follows naturally.

For a full review of your system's readiness across all 12 Foundations, see the Preparedness self-assessment guide — it reveals which areas have maintenance backlogs that go beyond scheduling. For the complete 30-day off-grid operational playbook that maintenance systems support, see the First 30 Days guide.

Sources and next steps

Last reviewed: 2026-05-18

Source hierarchy:

  1. NFPA 10, Standard for Portable Fire Extinguishers (2022) (Tier 1, NFPA standard — monthly visual inspection §7.1, annual maintenance §7.3)
  2. NFPA 211, Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances (2024 edition) (Tier 1, NFPA standard — annual inspection §14.2.1)
  3. CDC Emergency Water Storage Guidance (Tier 1, federal — 6-month rotation for stored tap water, 1-year for commercially bottled)
  4. USDA FoodSafety.gov / FoodKeeper App (Tier 1, federal — food rotation windows by category)
  5. NFPA 1144, Standard for Reducing Structure Ignition Hazards from Wildland Fire (Tier 1, NFPA standard — 30 ft / 9 m defensible space)

Legal/regional caveats: Fire extinguisher service intervals and chimney inspection requirements may be mandated by local fire codes independent of NFPA adoption. Vehicle inspection and emissions testing requirements vary by state and are not universal. Outdoor propane heater use indoors is prohibited by manufacturer listing in virtually all residential contexts — local fire marshal guidance governs. NFPA standards are not automatically adopted by all jurisdictions; verify with your local AHJ.

Safety stakes: standard guidance.

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