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Start:Jul 04, 2020

Duration:5 Minute(s)

Goal: this Cognitive Trail will increase the ability to apply Cal/OSHA safety standards for the construction industry.

Description: This Navitent will increase the successfulness of applying OSHA's safety standards. This information was taken from Cal/OSHA Pocket Guide f ... Read More

Summary: Safety Made Simple

Step 1

The next Steps cover Cal/OSHA safety regulations for Engine Exhaust Emission. Where appropriate, we have referenced the code from Title 8 of the California Code of Regulations.

The topics we will cover in this Navitent are:

-Purifier Devices
-Shafts, Culverts or Pipelines
-Inside Buildings or Enclosed Structures

After each of the next Steps, select the 'successful' response to indicate that you have read and understand the Step.

Select 'successful' now and proceed.

Step 2

Purifier Devices

Exhaust purifier devices approved by Division of Occupational Safety and Health (DOSH) or California Air Resources Board (CARB) must be used to maintain concentrations of dangerous gases or fumes below maximum acceptable concentrations if natural or forced dilution ventilation and exhaust collection systems are inadequate.

Note: approval by DOSH will be based on the Maximum Allowable Standards for Internal Combustion Engine Exhaust Emissions as set forth in 5146(c).

Step 3

Shafts, Culverts or Pipelines

When employees enter shafts (20 feet or less), culverts or pipelines where hazardous atmosphere exists or is reasonably expected to exist, a mechanical ventilation system shall be provided to prevent exposure to engine emissions.

Step 4

Inside Buildings or Enclosed Structures

Internal combustion engine-driven equipment can be operated inside buildings or enclosed structures only when it does not result in exposure to dangerous gases or fumes as per 5155.

Step 5


Use of internal combustion engines in tunnels is prohibited.

Exception: diesel engines may be used in underground tunnels if the engines are permitted by DOSH.

Step 6

How much did this Navitent help you to understand the Cal/OSHA safety regulations for Engine Exhaust Emission, including:

-Purifier Devices
-Shafts, Culverts or Pipelines
-Inside Buildings or Enclosed Structures

Select your response below.

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