Lab. Code, § 7966 · Chapter 2. Gassy and Extrahazardous Tunnels
Lab. Code, § 7966
Text — As published in the Legislative Counsel's database, tables dated October 18, 2026 (pubinfo_2025.zip)
In any tunnel classified as gassy by the division, there shall be tests for gas or vapors taken prior to each shift and at least hourly during actual operation. If a mechanical excavator is used, gas tests shall be made prior to removal of muck or material and before any cutting or drilling in tunnels or underground mines where explosives are used. A log shall be maintained for inspection by the division showing results of each test. Whenever a tunnel excavation or underground mine operation approaches a geologic formation in which there is a likelihood of encountering gas or water, a probe hole at least 20 feet ahead of the tunnel face or area where material is being mined shall be maintained.
Notes and commentary — not statutory text
History
Added by Stats. 1972, Ch. 1430.
Source of truth
- Edition
- As published in the Legislative Counsel's database, tables dated October 18, 2026 (pubinfo_2025.zip)
- Official file
- https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=LAB§ionNum=7966.
- Text hash
- sha256 e391ad591ba8309410fb78e7d3539b0d0c023290e75204dfc8f86248bf003564
- Composed by
- compose_ca.py 2026-10-22: the Legislative Counsel's CAML content files read by a tokenizer (caml_readers.reader_a); an independent xml.etree reading (caml_readers.reader_b) agrees on every section
Procedural information only. Not legal advice and not a substitute for the advice of an attorney. Confirm the current text with the official publisher before relying on it.