Colony Inventory Discipline

Thirty years tracking bolts and barrels in Kentucky taught me one truth: every mission fails at the ledger. Mars is just a bigger warehouse with thinner air.

14-Week Cycle Stock Ledger

Category	Min Reserve	Reorder Trigger	Verification Step
Fasteners & Seals	18 months	12 months	Physical count + photo log
Nutrient Precursors	24 months	18 months	Lab assay + temp log
Power Spares	36 months	24 months	Functional test record

Ground Rules from the Floor

Never trust a spreadsheet without a second source count.
Label everything twice—once for now, once for the next shift.
Dust storms do not excuse a missed audit.

Modeled on Lake Cumberland supply runs and warehouse precision. 99.6% fill rate target.