What are OSHA requirements for confined space entry?

In Canada, the Occupational Health and Safety regulations for confined space entry are outlined in the Canada Occupational Health and Safety Regulations (SOR/86-304). Here are the key requirements:

1. Identification and Assessment: Employers must identify confined spaces and determine if they are hazardous. A qualified person must assess the hazards associated with the confined space and specify necessary tests to ensure safety [1].

2. Atmospheric Testing: Before entry, the atmosphere inside the confined space must be tested to ensure it is safe. Continuous monitoring is required if the atmosphere could change during occupancy [2].

3. Ventilation and Oxygen Levels: The oxygen level must be between 19.5% and 23% by volume. If ventilation is used to maintain safe conditions, it must be equipped with an alarm or monitored by an employee [3].

4. Entry Permit System: If required, an entry permit system must be in place, specifying the duration of the permit and recording the names and times of entry and exit [2].

5. Training and Instruction: Employees must receive training on entry procedures, emergency procedures, and the use of protective equipment before entering a confined space [3].

6. Emergency Procedures: Employers must establish emergency procedures, including a plan for immediate evacuation if conditions change or an alarm is activated [4].

7. Protective Equipment: Appropriate protective and emergency equipment must be provided to employees entering the confined space and those involved in rescue operations [5].

8. Communication and Monitoring: A qualified person must be present outside the confined space to maintain communication with those inside and to summon assistance if needed [6].

These regulations are designed to ensure the safety of workers entering confined spaces by addressing potential hazards and ensuring proper procedures and equipment are in place.