# 46 CFR § 143.210: Alternate design or operational considerations

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-46-143.210

## Section

- **Citation:** 46 CFR § 143.210
- **Heading:** Alternate design or operational considerations
- **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 M—TOWING VESSELS > PART 143—MACHINERY AND ELECTRICAL SYSTEMS AND EQUIPMENT > Subpart B—Requirements for All Towing Vessels

## Text

(a) Machinery or electrical systems of a novel design, unusual form, or special material that cannot be reviewed or approved in accordance with this part, may be approved by the Commanding Officer, Marine Safety Center. It must be shown by systematic analysis, based on engineering principles, that the machinery or electrical equipment or system provides an equivalent level of safety. The owner or managing operator must submit detailed plans, material component specifications, and design criteria, including the expected towing vessel service and operating environment, to the Marine Safety Center. Examples of novel design include use of liquefied natural gas, compressed natural gas, or propane fuel for propulsion, and hybrid, fuel cell, or battery propulsion.
(b) Alternate arrangements or equipment to comply with this part may be approved in accordance with § 136.115 of this subchapter.

## Nearby sections

- [46 CFR § 143.100 § 143.100 Purpose.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.100.md)
- [46 CFR § 143.105 § 143.105 Applicability.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.105.md)
- [46 CFR § 143.115 § 143.115 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.115.md)
- [46 CFR § 143.200 § 143.200 Applicability.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.200.md)
- [46 CFR § 143.205 § 143.205 General.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.205.md)
- [46 CFR § 143.210 § 143.210 Alternate design or operational considerations.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.210.md)
- [46 CFR § 143.215 § 143.215 Existing vessels built to class.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.215.md)
- [46 CFR § 143.220 § 143.220 Machinery space fire prevention.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.220.md)
- [46 CFR § 143.225 § 143.225 Control and monitoring requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.225.md)
- [46 CFR § 143.230 § 143.230 Alarms and monitoring.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.230.md)
- [46 CFR § 143.235 § 143.235 General alarms.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.235.md)
- [46 CFR § 143.240 § 143.240 Communication requirements.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.240.md)
- [46 CFR § 143.245 § 143.245 Readiness and testing.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.245.md)
- [46 CFR § 143.250 § 143.250 System isolation and markings.](https://www.frixlaw.com/law-library/statutes/ecfr-46-143.250.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-46-143.210. Check the current official text before relying on it. Not legal advice.