Section 332.29. Confined spaces [29 CFR 1910.146].

  These are department rules in addition to the requirements in 29 CFR 1910.146 , and apply to all confined spaces:

(1)   Entry prohibited. A confined space with an atmosphere that has a combustible gas content of 10% or more of the lower explosive limit may not be entered even if a breathing apparatus or respirator is used.

(2)   Smoking and open flames. Smoking and open flames may not be allowed within 10 feet of a confined space.

(3)   Working in streets. Work at confined spaces which are located in streets shall be performed in accordance with the following:

(a) A vehicle's beacon and 4-way flashers shall be activated upon approach to an entrance of a confined space.

(b) A vehicle shall be parked to permit traffic to flow in an unobstructed manner and, where possible, to provide protection for the employees.

(c) A vehicle shall be parked so vehicle exhaust cannot accumulate in the confined space. If this is not possible, the vehicle's exhaust pipe shall be extended away from the confined space.

Cr. Register, February, 1999, No. 518 , eff. 3-1-99; CR 14-060 : am. (title), (intro.), (1), (2) Register August 2015 No. 716 , eff. 9-1-15.