49 CFR 230.78
§ 230.78 Leakage.
United States · 49 CFR — Transportation · Status: effective
Cite this
- Citation
- 49 CFR 230.78, § 230.78 Leakage, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/258690
- Permanent ID
ys:prov:258690@1- SHA-256
77aaf56a7dc001c5868cbd06d53b5d55fddcbbfc0a424c1de84b17bde5cdd729
The hash is SHA-256 of this version's text, with every run of whitespace collapsed to a single space and the ends trimmed. The ID always leads back here, and checking it says whether the text you cited is still the current version.
Full text
(a) Main reservoirs and related piping. Leakage from main reservoir and related piping shall be tested at every 92 service day inspection and shall not exceed an average of 3 psi per minute in a test of 3 minutes duration that is made after the pressure has been reduced to 60 percent of the maximum operating pressure.
(b) Brake cylinders. Leakage from brake cylinders shall be tested at every 92 service day inspection. With a full service application from maximum brake pipe pressure, and with communication to the brake cylinders closed, the brakes on the steam locomotive and tender must remain applied for a minimum of 5 minutes.
(c) Brake pipes. Steam locomotive brake pipe leakage shall be tested at the beginning of each day the locomotive is used, and shall not exceed 5 psi per minute.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.