# 33 C.F.R. § 118.40 (2026): Modification of requirements

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_40

## Section

- **Citation:** 33 C.F.R. § 118.40 (2026)
- **Heading:** Modification of requirements
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 33 CFR: Navigation and Navigable Waters / Chapter I: COAST GUARD, DEPARTMENT OF HOMELAND SECURITY / Part 118: BRIDGE LIGHTING AND OTHER SIGNALS / § 118.40: § 118.40   Modification of requirements.

## Text

(a) The District Commander may modify the requirements for the display of lights and other signals on any bridge when a change in local conditions warrants the modification.
(b) The District Commander may exempt bridges over waterways with no significant nighttime navigation from the lighting or other signal requirements in this part.
(c) The District Commander may prescribe special lighting or other signals in specific cases when the lighting or other signals in this part may not provide adequately for the safe passage of vessels.
(d) While a bridge is under construction, the District Commander prescribes the temporary lights and other signals to be displayed for the protection of navigation.
[CGD 84-022, 51 FR 16313, May 2, 1986]

## Nearby sections

- [33 C.F.R. § 118.1 (2026) § 118.1   General requirements.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_1.md)
- [33 C.F.R. § 118.3 (2026) § 118.3   Incorporation by reference.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_3.md)
- [33 C.F.R. § 118.5 (2026) § 118.5   Penalty for failure to maintain.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_5.md)
- [33 C.F.R. § 118.10 (2026) § 118.10   Interference or obstruction prohibited.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_10.md)
- [33 C.F.R. § 118.15 (2026) § 118.15   Penalty for interference or obstruction.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_15.md)
- [33 C.F.R. § 118.20 (2026) § 118.20   Obtaining information.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_20.md)
- [33 C.F.R. § 118.25 (2026) § 118.25   Application procedure.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_25.md)
- [33 C.F.R. § 118.30 (2026) § 118.30   Action by Coast Guard.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_30.md)
- [33 C.F.R. § 118.40 (2026) § 118.40   Modification of requirements.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_40.md)
- [33 C.F.R. § 118.45 (2026) § 118.45   Lighting for the protection of aerial navigation.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_45.md)
- [33 C.F.R. § 118.50 (2026) § 118.50   Inspection.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_50.md)
- [33 C.F.R. § 118.55 (2026) § 118.55   Periods of operation.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_55.md)
- [33 C.F.R. § 118.60 (2026) § 118.60   Characteristics of lights.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_60.md)
- [33 C.F.R. § 118.65 (2026) § 118.65   Lights on fixed bridges.](https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_65.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T33_P118_S118_40. Check the current official text before relying on it. Not legal advice.