# 46 CFR § 153.230: Type I system

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-46-153.230

## Section

- **Citation:** 46 CFR § 153.230
- **Heading:** Type I system
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 46—Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER O—CERTAIN BULK DANGEROUS CARGOES > PART 153—SHIPS CARRYING BULK LIQUID, LIQUEFIED GAS, OR COMPRESSED GAS HAZARDOUS MATERIALS > Subpart B—Design and Equipment > Cargo Containment Systems

## Text

A type I containment system must meet the following requirements:
(a) The vessel must meet the requirements in subpart F of part 172 of this chapter for a type I hull.
(b) Except as described in § 153.235:
(1) It may be no closer to the tankship's shell than 76 cm (approx. 29.9 in.); and
(2) It may not be located in any part of the tankship subject to the damage described in Table 172.135 of this chapter for:
(i) Collision Penetration, Transverse extent; and
(ii) Grounding Penetration, Vertical extents from the baseline upward.
[CGD 73-96, 42 FR 49027, Sept. 26, 1977, as amended by CGD 79-023, 48 FR 51009, Nov. 4, 1983]

## Nearby sections

- [46 CFR § 153.190 § 153.190 Stability requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.190.md)
- [46 CFR § 153.201 § 153.201 Openings to accommodation, service or control spaces.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.201.md)
- [46 CFR § 153.208 § 153.208 Ballast equipment.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.208.md)
- [46 CFR § 153.209 § 153.209 Bilge pumping systems.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.209.md)
- [46 CFR § 153.214 § 153.214 Personnel emergency and safety equipment.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.214.md)
- [46 CFR § 153.215 § 153.215 Safety equipment lockers.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.215.md)
- [46 CFR § 153.216 § 153.216 Shower and eyewash fountains.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.216.md)
- [46 CFR § 153.217 § 153.217 Access to enclosed spaces and dedicated ballast tanks.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.217.md)
- [46 CFR § 153.219 § 153.219 Access to double bottom tanks serving as dedicated ballast tanks.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.219.md)
- [46 CFR § 153.230 § 153.230 Type I system.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.230.md)
- [46 CFR § 153.231 § 153.231 Type II system.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.231.md)
- [46 CFR § 153.232 § 153.232 Type III system.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.232.md)
- [46 CFR § 153.233 § 153.233 Separation of tanks from machinery, service and other spaces.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.233.md)
- [46 CFR § 153.234 § 153.234 Fore and aft location.](https://www.frixlaw.com/law-library/statutes/ecfr-46-153.234.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-46-153.230. Check the current official text before relying on it. Not legal advice.