CFR › Title 46 › Part 35 › §35.40-1546 CFR §35.40-15Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkAt each fire hose valve there shall be marked in not less than 2-inch red letters and figures: “FIRE STATION 1,” 2, 3, etc.