46 CFR § 35.25-10 - Requirements for fuel oil—T/ALL.

---
identifier: "/us/cfr/t46/s35.25-10"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 35.25-10 - Requirements for fuel oil—T/ALL."
title_number: 46
title_name: "Shipping"
section_number: "35.25-10"
section_name: "Requirements for fuel oil—T/ALL."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "D"
subchapter_name: "TANK VESSELS"
part_number: "35"
part_name: "OPERATIONS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1321(j); 46 U.S.C. 3306, 3703, 6101, 70011, 70034; 49 U.S.C. 5103, 5106; Executive Order 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Executive Order 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation No. 00170.1, Revision No. 01.4."
regulatory_source: "CGFR 65-50, 30 FR 16704, Dec. 30, 1965, unless otherwise noted."
cfr_part: "35"
---


# 35.25-10 Requirements for fuel oil—T/ALL.

(a) Oil to be used as fuel to be burned under boilers on tankships must have a flashpoint of not less than 140 °F. (Pensky-Martens Closed Cup Method, ASTM D 93) (incorporated by reference, see § 35.01-3).

(b) It is the duty of the Chief Engineer to make an entry in the log of each supply of fuel oil received on board, stating the quantity received, the name of the vendor, the name of the oil producer, and the flashpoint (Pensky-Martens Closed Cup Method, ASTM D93) (incorporated by reference, see § 35.01-3) for which it is certified by the producer.

(c) It is the further duty of the Chief Engineer to draw and seal at the time the supply is received on board, a half-pint sample of each lot of fuel oil, such sample to be preserved until that particular supply of oil is exhausted.

[USCG-2021-0097, 89 FR 93139, Nov. 25, 2024]