# 49 C.F.R. § 228.307 (2026): Definitions

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_307

## Section

- **Citation:** 49 C.F.R. § 228.307 (2026)
- **Heading:** Definitions
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Title 49 CFR: Transportation / Chapter II: FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION / Part 228: PASSENGER TRAIN EMPLOYEE HOURS OF SERVICE › RECORDKEEPING AND REPORTING › SLEEPING QUARTERS / Subpart E: Safety and Health Requirements for Camp Cars Provided by Railroads as Sleeping Quarters / § 228.307: § 228.307   Definitions.

## Text

As used in this subpart—
dB(A)
means the sound pressure level in decibels measured on the A-weighted scale.
Decibel (dB)
means a logarithmic unit of measurement that expresses the magnitude of a physical quantity (usually power or intensity) relative to a specified reference level. For the measurement of noise in this subpart, the reference level for the intensity of sound pressure in air is 20 micropascals.
Foot-candle
means a one lumen of light density per square foot.
HVAC
means heating, ventilation, and air conditioning.
Lavatory
means a basin or similar vessel used primarily for washing of the hands, arms, face, and head.
L
eq
(8)
means the equivalent steady state sound level that in 8 hours would contain the same acoustic energy as the time-varying sound level during the same time period.
Nonwater carriage toilet
means a toilet not connected to a sewer.
Occupant
means an employee or an MOW worker (both as defined in § 228.5) whose sleeping quarters are a camp car.
Ppm
means parts per million.
Potable water
means water that meets the quality standards prescribed in the U.S. Environmental Protection Agency's National Primary Drinking Water Standards set forth in 40 CFR part 141.
Potable water system
means the containers, tanks, and associated plumbing lines and valves that hold, convey, and dispense potable water within a camp car.
Toilet
means a chemical toilet, a recirculating toilet, a combustion toilet, or a toilet that is flushed with water; however, a urinal is not a toilet.
Toilet room
means a room containing a toilet.
Toxic material
means a material in concentration or amount of such toxicity as to constitute a recognized hazard that is causing or is likely to cause death or serious physical harm.
Watering
means the act of filling potable water systems.

## Nearby sections

- [49 C.F.R. § 228.301 (2026) § 228.301   Purpose and scope.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_301.md)
- [49 C.F.R. § 228.303 (2026) § 228.303   Application and responsibility for compliance.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_303.md)
- [49 C.F.R. § 228.305 (2026) § 228.305   Compliance date.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_305.md)
- [49 C.F.R. § 228.307 (2026) § 228.307   Definitions.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_307.md)
- [49 C.F.R. § 228.309 (2026) § 228.309   Structure, emergency egress, lighting, temperature, and noise-level standards.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_309.md)
- [49 C.F.R. § 228.311 (2026) § 228.311   Minimum space requirements, beds, storage, and sanitary facilities.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_311.md)
- [49 C.F.R. § 228.313 (2026) § 228.313   Electrical system requirements.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_313.md)
- [49 C.F.R. § 228.315 (2026) § 228.315   Vermin control.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_315.md)
- [49 C.F.R. § 228.317 (2026) § 228.317   Toilets.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_317.md)
- [49 C.F.R. § 228.319 (2026) § 228.319   Lavatories.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_319.md)
- [49 C.F.R. § 228.321 (2026) § 228.321   Showering facilities.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_321.md)
- [49 C.F.R. § 228.323 (2026) § 228.323   Potable water.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_323.md)
- [49 C.F.R. § 228.325 (2026) § 228.325   Food service in a camp car or separate kitchen or dining facility in a camp.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_325.md)
- [49 C.F.R. § 228.327 (2026) § 228.327   Waste collection and disposal.](https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_327.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/CFR_T49_P228_S228_307. Check the current official text before relying on it. Not legal advice.